‘Tips’ Archive
How To Check If Phone Is Unlocked Without Sim

How To Check If Phone Is Unlocked Without Sim? For a limited time, these phones are only available via their respective carriers. The phone may be unlocked when the contract has expired. However, in certain situations, you may be able to unlock your phone by paying an early termination charge on your contract. 

Knowing how to verify whether a phone is unlocked without a SIM card is crucial when purchasing a new or old phone. One reason is that locked phones prevent users from switching mobile networks.

Without a SIM card, how can you tell whether your phone is unlocked?

In general, you can tell if your phone is unlocked with or without a SIM card by checking it. The way you would use to verify whether your phone is unlocked, among the many alternatives available, is totally dependent on the software that it runs on. In this regard, there are roughly three basic techniques for determining whether or not your phone is unlocked.

1. Checking the lock state of your phone using the IMEI

How To Check If Phone Is Unlocked Without Sim

You’ll need the IMEI number if you have an Android phone. On Android phones with a detachable battery, the IMEI number is usually found on the rear panel. If your phone does not have a detachable battery, dial *#06# instead. Your phone’s IMEI number is also visible in the settings menu. 

If you’re using an Apple device, you can visit the UnlockBase’s network check here :


For your IMEI, you will obtain the whole data set of check results. The data is 100% correct since it comes straight from the manufacturer or network provider database.

If you’re using an Android device you can visit UnlockBase’s  IMEI Check Service If you didn’t know to what carrier your phone is locked here:


After you’ve obtained your phone’s IMEI number, input the 15-digit IMEI number into the box given.

2. Using Settings to check your phone’s lock state

When using an iPhone or an Android phone, the procedure is quite identical. You’ll need to go into your phone’s settings and go through the cellular data choices. If you don’t see the cellular data option, your phone is unlocked, and you won’t be able to change carriers unless you unlock it

3. To verify the status of your phone’s lock, contact support.

How To Check If Phone Is Unlocked Without Sim
Hand holding a smartphone with white in hand women.

Aside from the two techniques listed above, you may always enquire about your phone’s lock status by calling your service provider. You just need to call your cell carrier’s customer service and inform them of your desire. Customer care personnel will ask you for a few facts that they will use to determine your phone’s lock state.

So, how can I get my phone unlocked?

Not all phones are locked by default. Some manufacturers provide both locked and unlocked versions of their mobile devices, so you may choose which one best meets your requirements. Whether you’re purchasing your phone online, be sure to read the product details to see if it’s locked or not. If you decide to buy your phone from an outlet store, you should also inquire about your lock status.

It’s simpler to unlock a locked phone with an unlock code. It does not need any prior knowledge or equipment. Please take the following steps below to get your Unlock code from UnlockBase:

How To Check If Phone Is Unlocked Without Sim
  • Take out your phone’s original SIM card.
  • Insert a SIM card that isn’t approved.
  • You should now see a box where you may input the unlock code.
  • Enter the unlock code provided by UnlockBase

That is all there is to it. Enjoy your unlocked phone on any network, anywhere in the globe.


If you have a SIM, however, you must first enter a new SIM into your phone before attempting to make a few calls. If it is successful, your phone is unlocked, if not try the steps above to unlock one. If you have any suggestions let us know in the comment section below! 

All products, and company names, logos, and service marks (collectively the "Trademarks") displayed are registered® and/or unregistered trademarks™ of their respective owners. The authors of this web site are not sponsored by or affiliated with any of the third-party trade mark or third-party registered trade mark owners, and make no representations about them, their owners, their products or services.
unlock any phone

Unlock any phone! Changing mobile carriers can occasionally result in significant savings. However, before making the transition, you may need to unlock your phone from your existing carrier’s network. That isn’t difficult, but a little assistance can go a long way because the process differs from phone to phone and carrier to carrier.

Unlocking your device will not erase your data; you will lose data only if:

1. You forgot your passcode and need to reset your phone and it will remove all the files.

2. You have a corrupted operating system and must reprogram your phone.

3. You removed your files and restored your phone to default settings.

unlock any phone

When this happens, one option for regaining access is to perform a factory reset on the device. However, this will result in the complete loss of all data on your phone. Then you may wonder, “How can I unlock my locked device without having to reset it?” Here’s a quick tutorial on how to unlock a locked phone without losing data. As a result, you can simply unlock a locked phone.

Things you need to unlock your phone

  • Any browser ( phone, computer )
  • Your phone’s IMEI
  •  Any Simcard aside from your current carrier

Here’s the ideal, easy-to-understand unlocked technique, which begins with obtaining a 15-digit IMEI NUMBER. The IMEI NUMBER of Any smartphone can be obtained in the following manner:

Dial *#06# on your keypad or 

Go to phone setting-> About phone-> Status

unlock any phone

Unlock any phone

UnlockBase Service is a simple and convenient way to unlock your phone. A basic, step-by-step method is all that is required to get the job done safely and legally. In addition, it’s a long-term fix. Breaking the carrier lock is a once-and-done thing.

unlock any phone
  1. Select the brand of your phone.
  2. Type the IMEI of your phone.
  3. Enter your email for confirmation.
  4. Choose the country where the phone is locked to.
  5. Choose your network/carrier.
  6. Confirm your payment and wait for an email confirmation.

Phone Will be Unlock permanently, Even after firmware updates and/or reset/restore?

Restoring your phone to factory settings might resolve technical issues like limited storage or a laggy touch screen. It deletes all of your settings, including contacts, and forces you to start again or restore a backup of your data to repopulate the device.

Network/SIM lock is independent of the OS, so resetting the device will not affect the SIM lock/unlock state. Usually, unlocked phones are unlocked for good. So the answer is Yes. 

You can read this article for more details: https://www.unlockbase.com/blog/factory-reset-an-unlocked-phone/


Having your device unlocked will provide you with several perks. The benefits of unlocking your device include: saving money and having more options, being able to switch carriers with ease when traveling abroad, and much more. Just keep in mind that you will not lose any data when you unlock any phone

All products, and company names, logos, and service marks (collectively the "Trademarks") displayed are registered® and/or unregistered trademarks™ of their respective owners. The authors of this web site are not sponsored by or affiliated with any of the third-party trade mark or third-party registered trade mark owners, and make no representations about them, their owners, their products or services.
android change sim pin

iPhone and Android Change Sim Pin: The SIM PIN code protects against unwanted access to your SIM card data. Some smartphones have this capability activated by default, while others require it to be enabled. PIN stands for Personal Identification Number and is a four-digit access code. When you buy a SIM card, you get a PIN. This four-digit number is required to enable the SIM card in your phone so it can access your operator’s mobile network.

Is it important to have SIM Pin?

android change sim pin

We suggest you need to have a SIM PIN. If your smartphone is stolen, the thief likely wants it for its black market value, not to make calls or use your voice and data plans. But sometimes, the thief wants it too. Without an active SIM PIN, a thief may also be able to listen to your voicemail or read your new messages if they are close to you. You don’t want that, so creating a PIN for your SIM card is always a good idea. 

Android Change Sim Pin Guide

android change sim pin: In only a minute, you can change the PIN-code on your SIM card. To access the PIN change menu on Android phones, the addresses are usually identical. Here are the steps to take:

Enable SIM PIN

  1. Go to Settings
  2. Click Security
  3. Click More Security Settings
  4. Click SIM Card Lock Settings
  5. Enable Lock Sim Card
  6. Enter the current PIN of the card.
android change sim pin

Change SIM Pin

  1. Go to Settings
  2. Click Security
  3. Click More Security Settings
  4. Click SIM Card Lock Settings
  5. Enter the current PIN of the card.
  6. Enter the new PIN code.
  7. Re-enter the PIN code.
  8. Confirm the operation so that your SIM card has a new PIN code.

Change SIM Pin on iPhone

Changing your iPhone SIM PIN? Maybe you used your carrier’s code and want a more secure SIM PIN, or you created one yourself and want to change it now. Either way, it’s quick. Here’s how to change your iPhone’s SIM PIN.

Enable SIM Pin

android change sim pin
  1. Go to Settings
  2. Click Phone
  3. Choose SIM Pin
  4. Enable SIM Pin
  5. Enter your current PIN, then tap Done

Change SIM Pin

android change sim pin
  1. Go to Settings
  2. Click Phone
  3. Choose SIM Pin
  4. Click Change PIN
  5. Enter current PIN 
  6. Enter your new PIN.
  7. Re-enter your new PIN again to confirm.
  8. Tap Save.


As you’ve seen, the procedures are fairly similar for different phone brands. In most cases, the SIM card lock option is found in the Security and/or Privacy area. Input the new SIM card PIN code to secure your phone. Finally, using a unique SIM PIN helps protect your data if your phone is stolen. Leaving the default SIM PIN on makes it easy for the thief to guess. If the thief has access to your phone, they can make calls or send texts in your name and access sensitive data like bank account numbers. You should try your best to avoid it. Adding a second authentication mechanism like a fingerprint or lock pin to your phone also helps protect your data.

All products, and company names, logos, and service marks (collectively the "Trademarks") displayed are registered® and/or unregistered trademarks™ of their respective owners. The authors of this web site are not sponsored by or affiliated with any of the third-party trade mark or third-party registered trade mark owners, and make no representations about them, their owners, their products or services.
unlocked android smartphones

Let’s pretend you’re preparing to switch from your current mobile phone carrier to a new one. There are a few things to consider before making the transition, such as unlocking your smartphone.

If you don’t pay the whole amount for a new phone upfront, it will be “locked” to your carrier. This means that until you pay it off, your phone will only be able to connect to another carrier’s networks. 

What is the average time it takes to unlocked android smartphones?

unlocked android smartphones

The time it takes to unlock a phone is determined by how you unlock it. For example, if you want to unlock your phone via your carrier, the unlocking procedure might take up to 30 days. If you employ a carrier unlocking service like UnlockBase, however, the unlocking process might be completed in just 24 hours.

What’s the best way to find out that you have your phone unlocked?

Finding out whether your phone is locked is straightforward. Simply insert a SIM card from another carrier and check whether the network’s name displays on your phone. If it does, and you can use your phone, it has been unlocked.

Why should you unlock a network-locked phone?

So, why should you get your phone unlocked from your carrier? There are several reasons why this is advantageous:

unlocked android smartphones

1. To get a higher price for the phone. Selling a locked phone is more difficult and reduces the device’s value. By unlocking it, more people will be interested in purchasing it, and you will be able to charge a greater price.

2. In order to get better data plans. Perhaps your current carrier is too pricey or doesn’t provide the sort of plan you want. After you unlock your phone, you may select from practically any network’s data package.

3. To have international coverage. Customers don’t normally prioritize foreign coverage, but if you travel often, you may discover that certain carriers provide superior service and lower pricing for overseas use.

If you move carriers without first unlocking your phone, you may be unable to send messages or make phone calls. So, if your phone is locked and you need to transfer carriers, do you need to have service with your original carrier in order to unlock your device?

No. You don’t need to have service with your original carrier in order to unlock your phone, But you can use and Insert different Sim Card To Unlock Your Phone. 

Does my iPhone need to be switched on while waiting for the unlock? You can read this article for your reference: https://www.unlockbase.com/blog/how-to-unlock-iphone/

How to unlock a network-locked phone?

UnlockBase Service is an excellent tool to utilize if you want to unlock your Phone. The genuinely unique and fantastic aspect of this instrument is its simplicity of use and convenience compared to other alternatives now available on the market. It is secure, legal, and most importantly, can be completed independently using a basic step approach. It’s also a permanent solution, meaning that once you’ve broken the carrier lock, you’ll never have to do it again.

unlocked android smartphones
  • Select your Phone brand
  • Type your phone’s IMEI Code
  • Type your email for confirmation
  • Select the country of the network the phone is locked to
  • Select your network/carrier
  • Confirm your payment and wait for an email confirmation

Without the use of an Unlock Code, the Phone Factory Unlock can be completed completely remotely. Your Phone’s Factory Unlock is permanent, and it will remain so even if you upgrade OS or restore it.


The good news is that once you’ve network unlocked your smartphone, tablet, or portable hub, you’re done, you don’t need to have service with your original carrier in order to unlock your phone. Any suitable SIM card may be added, and you’ll be able to make calls, send SMS, and perhaps even get online as long as you have an account and credit with that network. Let us know if you have any additional suggestions in the comments section below!

All products, and company names, logos, and service marks (collectively the "Trademarks") displayed are registered® and/or unregistered trademarks™ of their respective owners. The authors of this web site are not sponsored by or affiliated with any of the third-party trade mark or third-party registered trade mark owners, and make no representations about them, their owners, their products or services.
smartphone gets too hot

Unfortunately, there is no one-size-fits-all solution to this problem. When there are too many applications running in the background, phones might grow heated. It’s impossible to rule out the possibility of a faulty battery or other technical issues. It’s also possible that it’s due to a malware infestation.

Here’s the thing: all phones can, and almost always do, become a bit warm. However, it becomes an issue when your phone overheats to the point that you can no longer handle it, or when it starts to behave strangely. There are a variety of reasons why this could occur.

What causes your phone to overheat?

smartphone gets too hot

The internal temperature of your phone is determined by the temperature of its surroundings. When your phone becomes too hot, it might suffer from issues such as battery damage, forced shutdown, and even a complete meltdown (yes, your phone’s Central Processing Unit can melt at severe temperatures). If your phone was forced to shut down due to overheating, there’s a risk it won’t restart.

There are various causes for your phone to overheat that aren’t connected to the ambient temperature, and some of them center around your battery. Do you have a lot of programs running in the background on your device? Many programs use a lot of power, which may rapidly deplete it. As a consequence, your phone will get hot

Smartphone Gets Too Hot? Cool your phone down

smartphone gets too hot

Most of the time, the reason your phone warms up is due to a combination of factors, not just one. Here are some suggestions for lowering the temperature.

First and foremost, never put your phone in the refrigerator. Introducing your phone to drastically varied temperature ranges all at once may cause the screen to break and the system to malfunction. Putting a phone in the freezer, on the other hand, causes condensation both inside and outside the phone’s casing, which may harm electrical components.

Here are some better ideas:

  • Remove the case from the phone.
  • Turn on airplane mode to turn off all internet connections.
  • Kept away from direct sunlight.
  • Place your phone near a fan (but not in a fridge, freezer, or cooler).
  • Reduce the brightness of the display.

How to Avoid Overheating on Your SmartPhone Device

Wouldn’t it be fantastic if we didn’t have to spend time cooling down our gadgets in the first place now that we know how? As a result, there are several things we should avoid doing in order to keep our phone or tablet cool.

If you want to keep your Android smartphone from overheating, be sure you do the following:

smartphone gets too hot
  • Make use of the Battery Saver mode.
  • To get rid of unwanted files and viruses, clean up your phone.
  • Reduce the usage of cameras.
  • Unless absolutely necessary, turn off Wi-Fi, Bluetooth, and GPS.
  • Consider replacing the charging cord or battery, or repairing it.

Your phone should not only cease overheating in the future, but it should also survive longer!

Phones and tablets are intended to shut down at severe temperatures as a safety measure. To put the above into effect, you’ll only have to wait for it to recover from the extreme heat.


It’s crucial to keep your Android background applications and processes under control if you want to keep your phone cool. When a phone becomes too hot, it begins to slow down. It may shut down automatically until it has cooled down in certain circumstances.

You don’t want to miss a crucial call? Take the actions described above! Please leave a comment below if you have any suggestions!

All products, and company names, logos, and service marks (collectively the "Trademarks") displayed are registered® and/or unregistered trademarks™ of their respective owners. The authors of this web site are not sponsored by or affiliated with any of the third-party trade mark or third-party registered trade mark owners, and make no representations about them, their owners, their products or services.
how to fix sim card not detected

Regardless of how far phone technology has advanced, the most vital function of every mobile device is still making or receiving calls. And if your phone says “SIM card not detected,” that indicates you haven’t used your phone in a while.

 The situation is likely aggravating, and a quick solution will be necessary. If you’re stuck and don’t know what to do, try these recommended steps when your Android phone’s sim card isn’t detected.

Ways How To Fix Sim Card Not Detected

Reboot Your Smartphone

how to fix sim card not detected

If a software fault causes your SIM card error, a simple reboot may be all that is required to resolve the issue. This can cure a variety of topics; however, customers complained that rebooting isn’t enough to repair the “No SIM” error and that rebooting may potentially produce the “No SIM card detected” message.

The answer was to turn off their phones for 30 seconds and then turn them back on. If this resolves your issue, you should continue to power down instead of restarting and then turn on your phone until an Android update or carrier settings update is issued to address the issue.

Re-Insert Sim Card

how to fix sim card not detected

Check your SIM tray next. Remove it and correctly re-insert it. Insert a little bent paper pin into the pinhole as you pull the tray out of the slot. Lightly push down on the SIM tray until it pops out.   Re-insert the tray after inserting the SIM in the proper orientation.

Don’t try to push it. If the tray becomes stuck, gently push it. The forceful push may damage the pin or the circuit board, increasing your “SIM card not detected” issue.

Check to see whether your SIM card is active.

This will help us to identify the specific source of the problem. Use the SIM card on a separate phone. If the phone does not recognize the SIM card, the SIM is the issue. 

  • To begin, contact your network service provider to verify that the SIM is activated.
  • Also, check to see whether the SIM registration is completed correctly.
  • Check to see whether the SIM is in good shape. Clean it with soft cotton cloth if there is any dust or carbon on it. But be careful not to scratch it. Otherwise, you risk inflicting more significant harm to the SIM card.

Enable your SIM card 

Examine your network and SIM card settings now. Go to Settings > Mobile Network to get started. Toggle on “Enable” under SIM Card Info & Settings, then tap the SIM. Also, while you’re in a roaming region, make sure data roaming is turned on to prevent this problem.

Set the Network Mode to Automatic.

how to fix sim card not detected

Another option is to change the network mode to automatic. You may do this by navigating to “Settings -> Mobile Networks -> Network Mode” and selecting LTE/WCDMA/GSM as the first option (auto connect).

Clear the Cache to Fix the SIM Card Error

To repair the no SIM card problem, clear the cache on your Android device. “Settings -> Storage -> Internal Storage -> Cached Data” that’s where you’ll find it. A pop-up will appear when you press on cached data, informing you that this will delete the cache for all applications on your smartphone. To complete the process, just hit “Delete.”

Check Sim Slot

Dust may collect in the SIM slot and connection, preventing the device from correctly reading the card. As a result, you should check into it as well. To clean the connection, lightly wipe it. Also, make sure the pin isn’t broken.

A damaged pin might also result in an android phone not detecting a SIM card. If you have any hardware damage, you should take it to a local service shop and have it serviced or replaced by qualified specialists.

If the sim slot is working fine, maybe you need to unlock your phone :

Unlock Your Phone’s Carrier

how to fix sim card not detected

If your SIM card is not inserted correctly, damaged, or not enabled on your network, you won’t be able to make or receive calls or texts, and you’ll get errors on your phone like “ Sim Card Not Detected.”

However, you must ensure that your phone is not locked to your carrier for this to work. Otherwise, using a sim card from another carrier would not work.

Removing your phone’s carrier lock is a straightforward process, and if your carrier refuses or is unable to do it, you may do so safely using UnlockBase.

Visit https://www.unlockbase.com/unlock-phone/ for more information


There would be no need to spend time trying alternative techniques if there was a way to identify generating the no SIM card problem from the start. Unfortunately, unless the Android smartphone displays a notification indicating the problem, you’ll have to rely on trial and error. If you have any other ways to resolve this problem, you can recommend it by commenting below!

All products, and company names, logos, and service marks (collectively the "Trademarks") displayed are registered® and/or unregistered trademarks™ of their respective owners. The authors of this web site are not sponsored by or affiliated with any of the third-party trade mark or third-party registered trade mark owners, and make no representations about them, their owners, their products or services.
sim card not provisioned mm2

When you get a brand-new phone, you are eager to use it for calls and other activities. When your new phone displays a SIM card not provided error, however, your enjoyment fades fast. When this occurs, you won’t be able to make or receive calls or access the Internet on your phone.

The MM2 issue (Sim not supplied) is quite prevalent on Android phones but don’t worry, this is a simple problem to correct. You’ll be able to solve the issue as long as you know what’s causing it. Why does my phone show that my SIM card hasn’t been activated? What should I do with my SIM card after it has been activated? In this article, we’ll teach you how to do fast and simple troubleshooting tasks to resolve the sim not provided mm2 or sim not provisioned problem.

Why does “ Sim Card Not Provisioned MM2 ” Occur?

You won’t be able to make or receive calls or texts if the SIM card is not correctly inserted, damaged, or not enabled on your network, and you’ll get errors on your phone like ‘sim not provisioned,’ ‘phone not permitted for voice,’ or ‘sim not provided mm2.’

The following are some more causes for the sim not provisioned error:

  • You purchased a new phone as well as a new SIM card.
  • The server of your mobile network provider is unavailable (if you’re using an iPhone, the Apple server also needs to be online).
  • There’s an issue with the SIM card’s placement.
  • You have left your carrier’s service region and have been deactivated from roaming.
    If you’re “roaming” or beyond your carrier’s service region, you’ll need to use a SIM card from one of the other carriers that serve the area.

However, you must confirm that your phone is not locked to your carrier in order for this to function. Using a sim card from another carrier will not work otherwise.

Removing the carrier lock on your phone is a simple and painless operation, and if your carrier refuses or is unable to do it, you may do so securely using UnlockBase.

You can visit here: https://www.unlockbase.com/unlock-phone/

sim card not provisioned mm2

Ways To Fix “Sim Not Provisioned MM2”

What should you do if you get a “sim not provided mm2” error?

The first step in correcting this mistake is to figure out why it happens in the first place. Let’s start with the most basic and apparent point, which is the sim card’s look.

1. Examine the SIM card for any potential damage.

sim card not provisioned mm2
  • Remove the SIM card. Are there any dents, damage, or scratches?
  • Is the sim card correctly inserted into the sim slot?
  • Is the size of the SIM card correct?
  • Is there dirt on the sim card or in the slot for the sim card?

The sim card may be positioned in the rear, underneath the battery, if you have an older phone model. To get to the sim card slot, you must first remove the battery. A sim card slot may be seen on the side of newer phones.

Before you start using your phone, ensure sure the sim card and the sim card slot are free of damage or debris. If this is the case, you’ll need to get a replacement SIM card from your carrier.

2. Restart your phone

sim card not provisioned mm2

Try restarting your phone’s system if the SIM card does not display any visible symptoms of damage or dirt A quick restart may sometimes cure the SIM card not provided problem. This issue might have occurred because the phone took longer than normal to connect with your SIM card, or because the phone’s system experienced minor glitches.

3. Enable Airplane Mode 

sim card not provisioned mm2

If rebooting your smartphone does not solve the problem, try switching to Airplane mode. Airplane mode turns off your phone’s network connection. To reconnect your phone, tap Airplane mode once again. Your SIM card may not be enabled if you continue to get Sim not provisioned mm2 or Sim not provided errors on your phone.

4. Try to use the SIM card on a different phone.

However, if it is detected by the other device, it indicates that the SIM card is functional. If it’s not recognized and it’s a fresh sim card with no visible damage on the exterior, it’s probable that your carrier hasn’t activated it or there’s a defect in your sim card slot.

If you’re not sure if the problem is with the SIM card or the SIM card slot, there is a possibility. If you have a functional spare phone, you may try placing your SIM card into that phone. If you use a postpaid phone with a different carrier, your sim card will not function, and you will see an error message that says “SIM not valid” or “SIM not supported.”

5. Contact your provider to activate your SIM card.

sim card not provisioned mm2

Is your SIM card a recent purchase? Do you have an old SIM card that you’re using in a new phone? A new SIM card takes 24-48 hours to activate, as we explained before in this post. If this is the case, all you have to do now is wait for the SIM or phone to be activated within the time frame specified Fresh phones often arrive with a new SIM card that is pre-registered with the phone. You should also double-check that your phone is compatible with your previous SIM card If you’re using an old SIM card on a new phone, you’ll need to let your carrier know so they can register it and get it activated with the new phone.


It’s worth noting that this problem only affects SIM-enabled mobile handsets. These repairs will work as long as the SIM is compliant and fits into the slot. You should now be able to figure out why your phone is exhibiting the “SIM not provided MM2” problem. If you have any other ways to fix the said error, let us know in the comment section below!

All products, and company names, logos, and service marks (collectively the "Trademarks") displayed are registered® and/or unregistered trademarks™ of their respective owners. The authors of this web site are not sponsored by or affiliated with any of the third-party trade mark or third-party registered trade mark owners, and make no representations about them, their owners, their products or services.
phone not allowed mm 6

If you have a used or secondhand phone that is still connected or linked to the previous carrier, you may get the “Phone Not Allowed MM 6 Error” after inserting a new SIM card on a regular basis. This article will assist you in resolving the Phone not permitted for voice error.

Many smartphone manufacturers are producing new and advanced smartphones, and as a result, many customers are switching from old to new devices. These obsolete gadgets are reconditioned and sold to others all over the world. Even though refurbished cell phones aren’t brand new, numerous components and software are replaced before they’re sold to another person.

Many secondhand or refurbishment businesses repair and sell obsolete cellphones. While being utilized, these phones may generate a variety of problems. The MM#6 Error is one of the most prevalent issues seen by secondhand users.

What Are Phone Not Allowed MM 6 Errors?

When you try to contact or message with a locked phone, the MM#6 error appears, which is most common on recently purchased second-hand or refurbished phones. It’s possible that your phone is still connected to another device and locked to a certain carrier. It’s critical to double-check that the smartphone you’re buying is untethered or properly unlocked. In addition, the SIM card you’re using isn’t supported by the carrier.

That concludes the fundamentals. Let’s get started looking at the remedies for MM#6 issues on cellphones.

What Causes the MM#6 Error?

phone not allowed mm 6

There are two reasons for this error:

  • The device is Blacklisted
  • The device may not be used with SIM Card inserted (not because of carrier lock but because the IMEI was not authorized to be used with this specific SIM Card yet)

Many smartphone manufacturers partner with carriers, and your network will be restricted to a single carrier. This allows smartphone manufacturers to lower their costs while also allowing carriers to attract more subscribers. As a result, your network is restricted to a single carrier, and you are unable to add another sim card.

As a result, the phone is prohibited. The MM#6 mistake may be found on AT&T, Metro PCS, Attention, and other carrier providers, as well as mobile manufacturers like Samsung, Oneplus, Nokia, Huawei, and others.

Possible Ways to Fix Phone Not Allowed MM 6 Error?

phone not allowed mm 6

Contact Your Network Operator

Contacting the same carrier’s service center and requesting that your device be DE-BLACKLISTED is the best and quickest option to remedy this problem

They need to contact the carrier to check for the reason for the blacklisting and have this resolved with them or they just need to contact their carrier and have their IMEI added to their account (with most carriers they can do this themselves in their online self-service portal) and it will work right away

After contacting the carrier, there is no guarantee that the issue will be resolved. However, you should attempt this approach first since they may unlock the phone from their end after verification.

Reinsert SIM Card

If you have the same sim card that was previously allocated to your mobile device, or if you’ve tried the first approach and are still having trouble seeing the network, use this technique to change your carrier name.

  • To remove the sim card tray, use the sim ejector pin.
  • Try switching the sim cards if your phone has a dual sim card slot.
  • Restart your phone after reinserting your sim tray.
  • Make sure the network is available

Use the Operation Menu.

If the first two option doesn’t work, dial *#78# from the dial pad menu. This number disconnects your handset from the carrier and unlocks it, although it does not work for everyone. Fortunately, if the method works, try using a different SIM card with the phone.

And, if that doesn’t work, try one of the other options below. Because not every carrier offers the same combination of digits to unlock the phone, this technique isn’t applicable to everyone.

Automating Network Selection

You may choose to pick your network manually or automatically on Android. By default, this is set to automatic. If you’ve made any changes to this option, try reversing them and restoring them to their default state. Here’s how to go about it.

  • Select Settings from the notification bar by scrolling down.
  • Select SIM & Network from the drop-down menu.
  • Choose the sim card that is displaying the issue.
  • Scroll down to “Network Operators” and click it.
  • Set it to “Choose Automatically” using the toggle bar.

Update your device

As these mobiles are tethered to a single carrier operator or manufacturer, it is important to keep your device updated to receive and download any security or software patch that might be causing Error MM#6 on your device. Updating your smartphone is quite easy and you can update your android device using these simple steps.

  • Open the Settings option by dragging the notification panel or selecting the Settings option from the App Drawer menu.
  • Scroll down to the bottom and click the About Phone or Software Update option.
  • Click the “Check for Updates” button.
  • If any updates are available, click the Install Updates button and wait until the updates are successfully installed.
  • Finally, Restart your device and try inserting the sim card again

Unlocking Your Carrier Lock

Typically, this indicates that the device has been blacklisted or carrier locked, however with other carriers, it may indicate that the customer must first add the IMEI of their handset to their T-Mobile/Metro/Sprint account before the SIM Card can operate with this device.

To Unlock your Device go to the Unlockbase website: https://www.unlockbase.com/unlock-phone/

  • Select your service on your cellphone.
  • Find your IMEI number by means of a four-digit code (*#06#).
  • Order your unlock phone code (It has a 100% money-back guarantee)
  • Enter the unlock code, and your phone is sim-free!


So, there were some practical solutions to MM#6 problems. If none of the above methods work, your only choice is to go to your phone’s manufacturer’s or network operator’s closest authorized shop.

All products, and company names, logos, and service marks (collectively the "Trademarks") displayed are registered® and/or unregistered trademarks™ of their respective owners. The authors of this web site are not sponsored by or affiliated with any of the third-party trade mark or third-party registered trade mark owners, and make no representations about them, their owners, their products or services.

Do you have an old Samsung Galaxy Note 3 that is no longer working? The display looks fine but it’s not responding even if you charge the battery? Well, before you throw that vintage beauty away, there’s a way to bring it back to life and even remove the sim lock from its carrier. And that is by replacing its motherboard. 

Disclaimer: Yes, you will have to tinker with your phone’s hardware. By following this guide, you acknowledge the risk and we will NOT take responsibility if any damage is done. 

Now that we have that cleared up and you still want to bring your Note 3 to life, here are the basic tools you will need to follow this guide: 

  • Samsung Galaxy Note 3 
  • A factory unlocked Samsung Galaxy Note 3 Motherboard (you can purchase it from third-party sellers, make sure to double-check the correct model number).
  • J1 screwdriver

If you have all the tools needed, then let’s get started! 

Below are the steps on how to replace Samsung Galaxy Note 3 Motherboard:

  • Carefully remove the battery, SIM card (if any), and microSD card (if any).

  • Remove the IMEI sticker, and replace it with one that came with your replacement motherboard. If if didn’t come with a sticker, leave it blank.
  • Take out all twelve screws.
  • Remove the cover by prying on the side of the battery compartment.

  • Disconnect all of the cables as indicated by the picture below.
  • Slowly remove the motherboard from the phone.
  • Slowly install the replacement motherboard. Work out all of the connectors, and ensure that they’re all above the motherboard.

replace Samsung Galaxy Note 3 Motherboard Guide

  • Reconnect the cables as indicated in the picture below.
  • Replace the cover. Massage the entire edge of the phone. To ensure that the cover is snapped in place.
  • Screw all twelve screws.

replace Samsung Galaxy Note 3 Motherboard Guide

  • Insert SIM, and/or micro SD card (if you have one).
  • Insert the S-Pen and install the battery cover.
  • Turn on the phone and ensure that it works!

If you followed all the steps of how to replace Samsung Galaxy Note 3 motherboard correctly, then your phone should work. This is one of the hacks that can factory unlock a previously locked phone otherwise if you have a sim locked Samsung Galaxy Note 3 that works just fine but you want to unlock or use it with another carrier, you can always have it unlocked through us! 

Give us a chat or go to our unlock phone page and choose your device and your carrier. Price may vary depending on your device model number, carrier or type of service, but we have the most competitive prices and the fastest turnaround times in the market! Over 8 million people worldwide have trusted us to unlock their phones! 

That’s it for this guide! If you think this helped you immensely, please return us the favor and share this with your friends! Just click on the share button for Facebook or Twitter at the end of this post. 

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All products, and company names, logos, and service marks (collectively the "Trademarks") displayed are registered® and/or unregistered trademarks™ of their respective owners. The authors of this web site are not sponsored by or affiliated with any of the third-party trade mark or third-party registered trade mark owners, and make no representations about them, their owners, their products or services.

Factory Reset


Selling your old phone or just wanting to have a ‘fresh start’? If you want to ensure you your data is securely wiped out before you sell it to the marketplace or for any other purpose, then this is the guide for you. In this guide, we will be showing you how to do a factory reset and back up your data correctly on your Android phone.

What does Factory Reset mean?

As the term itself defines, factory reset is a method of restoring your phone’s original manufacturer settings. After doing a complete factory reset on your phone, you will realize that everything you have customized in it, like wallpapers, themes, languages, etc. will now be gone and the phone’s interface is back to when you had set it up the first time.

Related: How to sell your phone for the best price

A factory reset doesn’t involve tinkering on your phone’s hardware. It only resets the software and you can definitely do it correctly on your own through the Settings app on your phone.

A factory reset will erase all the data you have on your phone. That includes apps and all the data in those apps, pictures, music, downloaded files, etc. And that is the main reason why it is necessary for you to back up your data.

Android phones have a different settings place and terms used. If you are not familiar with your phone’s Settings app, you may visit this list of Android phone manufacturers and check out your phone’s UI (user interface).

Note that a Factory Reset is not the same as Factory Unlock. Factory unlock is a service that is also known as sim unlock where a certain service provider, like UnlockBase, removes the lock your carrier put on your phone so you can use another carrier’s sim card.

Types Of Reset

Aside from a factory reset, there are other types of resets that are available in many Android phones. In some Android phones you will have 3 different options for ‘reset’ and none of them directly uses the term ‘factory reset,’ and they are:

Reset Network Settings

Resetting network settings means deleting all the saved WiFi, Bluetooth, and Mobile Data information in your phone and restoring the default manufacturer network settings. If you are trying to resolve connectivity or internet issues on your phone, this is the option for you.

Reset All Settings

This type of reset restores system default settings without erasing any data. Its purpose is to help you go back to your phone’s default theme, keyboard, language, etc. This doesn’t erase your downloaded apps, pictures, contacts, messages, etc.

Erase All Data

This is the new term for Factory Reset, and as the term itself defines, going in this direction erases all the data in your phone. This includes your Google Account, downloaded apps, saved passwords, albums, downloaded files, etc.

It will completely wipe out everything that’s on your phone and restores your phone back to its default system state. If you are selling your phone, there’s no need to log back in again to your Google Account, because unless your account’s deleted, the new user won’t be able to use it.

Ways To Back Up Your Phone’s Data

If there’s anything more important than your phone itself, it’s the data it contains. There are three ways to back up your data: (1) Google Account, (2) Using external memory or another computer device (3) phone manufacturer’s Cloud account.

(1) Google Account Back up

What type of information does your Google (Gmail) Account save/back up for you? It will save your calendar, contacts, and other similar Google developed Android apps. It will automatically sync and back up every data from all the synced apps on your phone.

However, you have to make sure your Google Account is synced with your phone.

To know your Google account: 

  • Go to Settings 

  • Go to Accounts 
  • Open Account username (email)

Tap on the “>” icon next to your email address and you will see all the synced apps under that account.

(2) MicroSD, External Memory Card Backup

What type of information can you save via an external memory card or computer?

You can save several phone-based apps such as Gallery/Albums, Notes, Contacts, Music, Recorded audio, and other downloaded files. If your phone has a memory card with an ample amount of space, you can move your albums and other downloaded files in this location.

To move files from your internal storage to your SD card:

  • From your Home screen, open “File Manager” or go to “Local Storage”. Tap on the “Internal Storage” to open files saved in your phone’s own storage.

  • Select all the items you want to “move” or save on your SD card or memory card.

  • After selecting all items, scroll down and tap the “Move” option at the bottom of the screen.

  • And then from the Local Storage section, go to “Memory Card” and tap the “Move Here” option.

If you want to save them to your computer, you can hook it to the computer via USB cable.  Allow USB debugging (option will pop up) and then just copy and paste all the file on your selected folder from your phone to your computer.

Internet-based apps like Netflix and Spotify most often save your data using their own secure server.

Samsung Smart Switch

For Samsung users, it’s more convenient to use Smart Switch. Samsung Galaxy S7 and later has this pre-installed, but if you don’t have it, you can download it on the Google App Store and the Galaxy Store. It allows you to transfer files Galaxy to Galaxy using a USB connector. According to their website, these are the ways on how to use the Smart Switch:

  • Galaxy to Galaxy via a USB cable and connector.
  • Android to Galaxy via WiFi Direct.
  • iOS to Galaxy using a USB connector.
  • iOS to Galaxy through iCloud.

Samsung Smart Switch offers a hassle-free file transfer between Galaxy phones, Android, and iOS.

(3) Cloud Account Backup.

What kind of data can you save on your phone manufacturer’s cloud account?

It will save many phone-based apps such as mentioned earlier. Most Android phone manufacturers have their own complimentary secure cloud-based storage service for free.

If you had signed up for it, you will be able to save your phone’s information through it but you will need a stable internet connection to do this successfully.

There are of course storage limitations, for example, Samsung Cloud only allows up to 1GB of data to be saved and specific file types. It is accessible through the Settings app on your phone and can save contacts, calendars, documents, Home Screen, Apps, Settings, Messages, Music, etc.

If you are selling your phone, log out of your phone’s cloud account and remove that phone from your account’s device list to prevent the new owner from accessing it without your knowledge.

Are you ready to reset your Android phone?

If you have already backed up your data, you are now ready to reset your phone. If you have plans on restoring the data back on the same phone, there are two things you need to remember:

  • Your Google Account’s login information.
  • Your phone’s unlock pin/password/pattern.

Make sure you have both information correctly. To confirm your Google account’s password, try logging in with your email and password on another device. If you can’t log in, you might need to request changing your password. Simply click on ‘Forgot Password?’ option and just follow the instructions after.

NOTE: If you just changed your password, you have to wait 24 hours before doing a factory reset.

So, are you ready to reset? Here’s how to do it:

  • Go to Settings
  • Click ‘Advanced’, in other phones ‘More Settings’
  • Backup and Reset
  • Erase All Data
  • Tap on “Clear now” and wait for it to process the reset.


After the reset, you may restart your phone and restore your backed up files or just let it be if you have plans on selling it. You may still use it, but without logging in to your Google account you may not be able to fully utilize all Android apps and features.

Hard Reset: What Is It And How To Do It

There’s soft reset and then there’s hard reset. Soft reset means a factory reset via the Settings app. If you can’t do that because your phone’s software is malfunctioning, your screen is unresponsive, or for any other reasons, you can still do a factory reset using its power and volume buttons. This type of reset is called the “hard reset.”

The process may be different for each type of Android make and model, but with most here’s how to do it:

  • Make sure you have enough battery power.
  • Turn off your phone.
  • Simultaneously press Power and Volume Up button. If the Android System Recovery screen is not up, you have to simultaneously press Power + Volume Up + Home Key button until the screen appears.
  • From the options, tap on wipe data/factory reset.
  • Tap on Yes (delete user data)
  • Tap Reboot System Now.

Your phone will boot up on its own and you can proceed from there. 


If you’re selling your phone, it is imperative to perform a factory reset to erase all your data because you run the risk of being hacked. There are a lot of horror stories over the years about people who sold their phones only to become the target of others who take advantage of their now compromised personal information.

Even if you’re just giving it to a family member, there will still be important information that could be stored somewhere you might have unchecked; like your saved passwords, bank information, messages, etc. A factory reset does not only delete photos, files, etc. it deletes synced account data that is stored in cloud-based servers either with Google or with your phone’s maker and only a factory reset can delete all of your secure login information successfully.

All products, and company names, logos, and service marks (collectively the "Trademarks") displayed are registered® and/or unregistered trademarks™ of their respective owners. The authors of this web site are not sponsored by or affiliated with any of the third-party trade mark or third-party registered trade mark owners, and make no representations about them, their owners, their products or services.
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