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Order the Unlock Code of your Samsung Galaxy S4 (GT-i9500)

Important: Select the Network your Samsung Galaxy S4 is originally from. Do NOT select the network you want to use.

When I order an Unlock Code for my Samsung Galaxy S4, what will I receive?

We provide you with the Unlock Code to permanently unlock your Samsung Galaxy S4.


In case your Samsung Galaxy S4 requires multiple Unlock Codes, all Unlock Codes necessary to unlock your Samsung Galaxy S4 are automatically sent to you.


We also provide detailed instructions on How To Unlock your Samsung Galaxy S4. In most cases the procedure is very easy:


Our Support Team is there to help with any questions you may have, please feel free to contact us anytime!

How to Unlock Samsung Galaxy S4?

NOTE: Make sure that Samsung Galaxy S4 PROMPTS for the code with a NON accepted sim card and that your IMEI is correct by dialing *#06#

  1. Go to the Dial pad and dial *#0011#.
  2. Please click your MENU button (Bottom LEFT button) and click BACK on the menu that appears, nothing will happen do not worry please move to the next step.
  3. Please click your MENU button again and this time click KEY INPUT.
  4. When the Key input box appears please input the number "1" and hit OK.
  5. You will see a number 1 for a while, please wait until it changes into the SERVICE MENU.
  6. Please click [1] DEBUGGING SCREEN > [6] Phone Control > [6] Network LOCK.
  7. You will see 3 OPTIONS within Network LOCK.
  8. Please click on number [1] Perso Sha256 INFO, the screen will change slightly.
  9. Please hit the MENU button then when the menu pops up please carefully hit BACK to return to the previous screen
  10. Next Please click on number [2] Perso Sha256 ON, the screen will change again to a one line message.





  • 11. Hit MENU go back and select [3] Perso SHA256 OFF.
  • You will see TWO lines, please click the very first one which will say then MENU NOT EXIST.
  • Click MENU and go back a page.
  • Hit [1] Perso SHA256 info (MAKE SURE IT SAYS ENABLED_FLAG ... [0].
  • Hit menu go back.


11. IMMEDIATELY ON THAT PAGE WITH THE ENABLED_FLAG[0], restart Samsung Galaxy S4 on the screen by holding the power button and click RESTART.
12. When Samsung Galaxy S4 prompts for the unlock code simply enter the unlock code provided to you.
13. Your Samsung Galaxy S4 is now permanently unlocked!

Any suggestion? Want to help us improve our Guideline to unlock Samsung Galaxy S4 ? or those are not accurate ? Please contact us

UnlockBase is an incorporated company, we've been unlocking cell phones for
18 years now and strives to provide the best service for our clientele.

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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. UnlockBase is not associated with or sponsored by Samsung. 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.

Why Purchase From Us?

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  • Permanent Factory Unlock
  • Full Permanent Unlock (All Levels)
  • 100% Money back guarantee
  • 24/7 Customer support team
  • Fastest turnaround of delivery
  • Simple instructions provided
  • Rated 4.9 out of 5 from 13545 reviews

Our Last 4 Certified Reviews

  • Kamala on 12/01/2022
    Less than 24 hours they sent me the unlock code of my Galaxy A52 5G. Unlockbase is my favorite when it comes to unlock a phone.
  • Gaz Matic on 11/25/2022
    I paid and got instructions in my email. Waited about 24 hours, got the codes, inserted my sim, used the codes and they worked. Highly recommended.

    I had a galaxy s22 ultra locked to att.
  • Adam Berg on 11/22/2022
    Amazing how fast and reliable this company is. And it’s company pricing is very reasonably priced, unlocking devices such as IPhone 11 Pro.
  • Rusty F on 11/21/2022
    That was AWESOME. Called CC about unlocking it and they gave me the runaround. Said it couldn't be done. 5 minutes after paying these guys far less than it would have cost to replace the phone it was back online. And it was a cheap phone. Great service, thanks so much. I needed some good news today, more than you'll ever know. Thanks Thanks Thanks!