Free SIM Unlock via nv_data.bin for SGS3 XXBLG1

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dagentooboy

Senior Member
Feb 16, 2008
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Kansas
On the T-Mobile (USA) S3 I can get into the modem but I am not sure how to dump the nvm from the modem. I think the only way we are going to get this is to get into the modem.
 

cyup93

Senior Member
May 2, 2011
97
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Help

I Have followed all instructions, but I could not get any MD5value when extracting the nv.text, I have repeated every thing 3 times.
BTW When I dieal *#7465625# I don't get anything. When I press on call I get a message saying Not registered on network (I don't have a sim card inside)

The S3 is locked to three UK

Is there any other method of unlocking the phone for free?

Thnaks in advance
 

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  • 41
    Well this is the method I used to unlock my S3 movistar.
    requirement:
    1 - Have the S3 root
    2 - Make a copy of the EFS folder
    3 - Hex Editor (I used Notepad + + with the plunging HEX)
    4 - Have installed root explorer
    We begin:
    1 - We copy our EFS folder to your PC and perform a second copy to work with.
    2 - Open the file nv_data.bin with Hex editor
    3 - We go to the address 00181460 and modify 01 to 00
    4 - Save the file

    http://forum.xda-developers.com/attachment.php?attachmentid=1135934&stc=1&thumb=1&d=1339936756

    5 - copy the file to your S3.
    6 - With the Root explorer, activate R / W in the EFS folder and file replace nv_data.bin.
    7 - With the root file explorer to give the following permissions:
    a. Owner: Read, Write, Execute
    b. Changes owner and group: 1001-Radio
    8 - Restart the phone.
    9 - After restarting check by dialing * # 7465625 # to the continuous network lock ON
    10 - Now we copy the file nv.log of your S3 (located in EFS folder)
    11 - Open this file and we will eventually see something like this:
    Fri June 15 16:39:51 2012: MD5 fail. md5 orignal fd4425f64f7f498230f16cd2234638a '2 '
    computed md5' faf1572f4a4dd15f1f9061840cc4b42f '(Rild)
    Fri June 15 16:39:51 2012: restored backup NV.

    12 - Now we're working copy of our EFS folder
    13 - Edit the file nv_data.bin.md5 and see at the dump that matches the first line: 2fd4425f64f7f498230f16cd2234638a
    14 - Modify from the dump placing the data in the second line: faf1572f4a4dd15f1f9061840cc4b42f
    15 - Save the file.
    16 - repeat the 5-6-7-8 but with both files (nv_data.bin and nv_data.bin.md5)
    To XXBLG1 add this step:
    17 - We copy and rename nv_data.bin and nv_data.bin.md5 to nv_data.bak and nv_data.bak.md5 respectively.
    18 - After rebooting check by dialing * # 7465625 # to the continuous network lock OFF
    I hope you find it helpful, as always, you are solely responsible, I just indicated to you those steps I've done on my terminal.

    This method is based on dagentooboy work http://forum.xda-developers.com/showthread.php?t=761045 so I must thank you for your work and the people he thanked.
    LEGAL NOTES (because information should be free for all):
    YOU MAY NOT, BY ANY MEANS, USE THIS SOLUTION/CODE OR PART OF IT FOR COMMERCIAL PURPOSES.
    DO NOT USE THIS EXTRACTION METHOD COMMERCIALLY
    3
    I never used the lock bit flip method, so its not by me and I would appreciate it if you would remove my name from the title.
    2
    Is it possible to unlock with this metod the XXLH1??

    thanks

    @cooldfuzion
    Now there's an app for that :)
    2
    can someone make a video for noobs like me ? just don't want anything wrong to happen.
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