How to unlock AT&T or T-Mobile Samsung Galaxy S4 (SGH-M919 or SGH-1337 or SGH-1337M) For Free?
If you are thinking to unlock your locked samsung galaxy s4, so it is very easy.
You can unlock your SGS4 without paying for it.
This way of unlocking sgs4 works for AT&T and T-Mobile Retailers only
PLease Note that this method is also find working on canadian variants of the galaxy s4 from BELL , Rogers or Telus.
Note:
While the method given below has been tested by many users and they passed but yet i could not guarantee that it will work for you TOO!!.
As the user makes many mistakes while unlocking it's locked mobile or rooting or unrooting, then it may cause failure. So please read the tutorial several times before proceeding to get safe from being failure.
Steps TO Unlock:
First of all open the DIALLER in your S4 and write
*#27663368378#.
Now you will see a screen saying Service Mode
In this carefully select [1]UMTS
Then from UMTS menu select [1]Debug screen. Above
After getting into the debug screen menu you have to select [6]Phone Control
In the Phone Control menu you will see a menu Saying [6]Network Lock
Tap on it
In the Network lock menu select [3] PERSO SHA256 OFF.
After selecting it a new menu will open in it select SHA256_ENABLED_FLAG[1]
Tapping on it will show the following message.
Menu Not Exist Press Back key
Current Command is 116631 or 116621
Now tap on the menu button (left to the home button) and in it select Back. (To go back Do not press the back button which is right to the home button).
When you will do this you will see the following lines or tabs on the screen which is saying
SHA256_ENABLED_FLAG[0]
SHA256_OFF => Not Change
As you know that at the place of 0 it was 1 Now it has been changed.
Ignore this and select the menu button and select back again
Repeat this process until you reach the UMTS MAIN MENU.
In the UMTS MAIN MENU you will find an option called
[6]COMMON Tap on it.
Then Select [6]NV REBUILD.
Now in the NV REBUILD menu click or tap the option saying [4]Restore Backup.
Selecting this option will freeze your T-Mobile or AT&T carrier galaxy s4 temporarily.
The screen will turn off, the menu and back buttons will light up and the device will reboot.
This process can take few minutes so be patient and do not press any button till your galaxy s4 reboot completely.
Finally your galaxy s4 will boot up normally and it will be SIM (GSM) locked Hopefully.
To check if it is Unlocked or not try installing the sim of other carrier or network provider.
Thanks!!!
Enjoy
Regards
Toxic Hack
Subscribe to me On Facebook
Mohammad Ammad
If you are thinking to unlock your locked samsung galaxy s4, so it is very easy.
You can unlock your SGS4 without paying for it.
This way of unlocking sgs4 works for AT&T and T-Mobile Retailers only
PLease Note that this method is also find working on canadian variants of the galaxy s4 from BELL , Rogers or Telus.
Note:
While the method given below has been tested by many users and they passed but yet i could not guarantee that it will work for you TOO!!.
As the user makes many mistakes while unlocking it's locked mobile or rooting or unrooting, then it may cause failure. So please read the tutorial several times before proceeding to get safe from being failure.
Steps TO Unlock:
First of all open the DIALLER in your S4 and write
*#27663368378#.
Now you will see a screen saying Service Mode
In this carefully select [1]UMTS
Then from UMTS menu select [1]Debug screen. Above
After getting into the debug screen menu you have to select [6]Phone Control
In the Phone Control menu you will see a menu Saying [6]Network Lock
Tap on it
In the Network lock menu select [3] PERSO SHA256 OFF.
After selecting it a new menu will open in it select SHA256_ENABLED_FLAG[1]
Tapping on it will show the following message.
Menu Not Exist Press Back key
Current Command is 116631 or 116621
Now tap on the menu button (left to the home button) and in it select Back. (To go back Do not press the back button which is right to the home button).
When you will do this you will see the following lines or tabs on the screen which is saying
SHA256_ENABLED_FLAG[0]
SHA256_OFF => Not Change
As you know that at the place of 0 it was 1 Now it has been changed.
Ignore this and select the menu button and select back again
Repeat this process until you reach the UMTS MAIN MENU.
In the UMTS MAIN MENU you will find an option called
[6]COMMON Tap on it.
Then Select [6]NV REBUILD.
Now in the NV REBUILD menu click or tap the option saying [4]Restore Backup.
Selecting this option will freeze your T-Mobile or AT&T carrier galaxy s4 temporarily.
The screen will turn off, the menu and back buttons will light up and the device will reboot.
This process can take few minutes so be patient and do not press any button till your galaxy s4 reboot completely.
Finally your galaxy s4 will boot up normally and it will be SIM (GSM) locked Hopefully.
To check if it is Unlocked or not try installing the sim of other carrier or network provider.
Thanks!!!
Enjoy
Regards
Toxic Hack
Subscribe to me On Facebook
Mohammad Ammad
Didn't work on my ATT S4
ReplyDeleteSK if that code did'nt worked for you so try dialling *#0011#
DeleteIf this will not wotk so please try to explain wht u are not getting
Hello, and
DeleteThanks! Didn't expect a reply. I have gone through the steps several times. When I got to SHA256_ENABLED_FLAG[1], it never had the (1) only SHA256_ENABLED_FLAG[0] and never got 116631. Came up 116630 every time. Don't know if that means anything. At the end - when it reboots, it still goes into all the ATT programs and signup stuff. I don't have an ATT SIM, as I bought the phone to use with NET 10. When I install the Net 10 SIM I get "SIM not provisioned mm#2" I tried a hard reset later, and when the phone rebooted it stayed only on the ATT logo for a while. Then, a short time later, it recovered all the ATT stuff by itself! Only things missing were settings I had made for wifi, etc. Any ideas, or what am I missing? Thanks!
Are you going through this process with your GSM in?
DeleteVery good article.
ReplyDeleteI too like to share my knowledge about unlocking Samsung Galaxy phones.
Samsung Galaxy S4 can be unlocked safely ,easily and permanently using unlock code . We can get the unlock code from our service provider or from online sites like Unlock-Zone.com . This method of using unlock codes to unlock the phone won't void its warranty. Whereas using software and applications to unlock will void the warranty and may damage the phone permanently if not used properly.
Keep it up!! You have done the nice job having provided the latest information.
ReplyDeleteFactory IMEI Solution
I still cant unlock mines i need help
ReplyDeleteVery informative but I am pretty impressed with these guys:
ReplyDeletehttps://www.youtube.com/watch?v=S_JWnTPub8s
http://www.attphoneunlockingshop.us/products/USA-AT%26T-Samsung-Galaxy-S4-IMEI-Unlock-Code.html
Good news
Delete