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[i9003] SIM Unlock for free!!!

9th August 2011, 05:29 PM   |  #1  
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I found an easy method to unlock the i9003.
To do this you will need an Hexadecimal editor and have root access to your phone.

Steps:

1. Make a full backup of the /efs folder
2. Get the nv_data.bin file located in /efs
3. Open it with an hexa editor (I used WinHex)
4. Go to line 181460 and modify from 01 00 00 00 00 to 00 00 00 00 00
5. Copy the modified nv_data.bin file into /efs
6. Set the appropiate owner user and group doing chown 1001.1001 nv_data.bin
7. Remove the nv_data.bin.md5 file
8. Reboot your phone
9. Enjoy!!

Locked


Unlocked


ADB commands:
# su
# cd /efs
# cp /sdcard/nv_data.bin /efs/nv_data.bin
# rm nv_data.bin.md5
# chown 1001.1001 nv_data.bin
# reboot

To check it you can do *#7465625# and verify that Network Lock is [OFF]

I hope it can be useful for you.
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14th September 2011, 11:30 PM   |  #2  
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after installing a new ROM and unlocking like this could the phone read my SIM card normally ?? (i'm in north africa - Tunisia)
15th September 2011, 02:24 AM   |  #3  
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Depends if your phone is region locked. Normally it shouldn't be locked, but some carriers with plans lock the phone
16th September 2011, 07:35 PM   |  #4  
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Thanks!! It works fine on my phone.
22nd November 2011, 12:59 AM   |  #5  
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nice job man.. it works fine
9th January 2012, 06:54 PM   |  #6  
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Thanks!
It worked perfectly!
24th April 2012, 05:06 PM   |  #7  
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It works. Fantastic solution
24th April 2012, 07:01 PM   |  #8  
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Nice Work Man!!

Sent from my GT-I9003 using Tapatalk 2
26th April 2012, 09:51 PM   |  #9  
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It works! You are a good man
31st May 2012, 10:26 PM   |  #10  
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Man my file has only got 2 lines written.... what can be the problem? Im copying the efs folder in my SDcard, then i choose the called file and it has 32 bytes. only 2 lines written.. Any helps?

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