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DroidZombie
DroidZombie, Fixing Droids since GingerBread
Category: Android Devices
Satisfied Customers: 17
Experience:  I've customized numerous devices, installed custom roms, and even built roms, kernels and apps. Need help?
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my Samsung S4 is block from using my malaysian sim card, how

Customer Question

my Samsung S4 is block from using my malaysian sim card, how can i unblock this
Submitted: 3 years ago.
Category: Android Devices
Expert:  DroidZombie replied 3 years ago.
Hi there, my name is Paul and I'll be assisting you.

To help answer your question I first need the model number of your phone. To find it go to settings->about phone. It should begin with GT-i95-- I need the full number.

Thanks
Customer: replied 3 years ago.

Its GT19505

Expert:  DroidZombie replied 3 years ago.
Ok. This is a little bit complex so make sure you read the whole process first.

Step 1: Launch the Phone app on your Galaxy S4, and dial in: *#0011#

Step 2: Press the Menu button followed by the Back key. Then, hit the Menu button again and select KEY INPUT. Enter 1 and press the OK button to enter ServiceMode.

Step 3: Press Menu one more time and tap back again. This will pull up the Main Menu for ServiceMode. Tap [1] UMTS.

Step 4: Now select [1]DEBUG SCREEN, followed by [6] PHONE CONTROL.

Step 5: From the next screen, pick [6] NETWORK LOCK.

Step 6: You’ll get three options. Hit the one that says [3] PERSO SHA256 OFF.

Step 7: Now, you need to get back to Main Menu. To do this, hit the Menu button followed by the Back key. In Main Menu, now pick [6]COMMON, and then [6] NV REBUILD.

Step 8: The phone will tell you that a Golden Backup exists. Tap [4] Restore Back-up.

Your device will now go through a series of “conditions”, where it will first freeze, then get on a black screen with Blue LED on and both capacitive buttons on, after which it will reboot automatically. The whole cycle might take a couple of minutes, so be patient. Once it powers back on, it’s network unlocked, permanently.