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[Q] HELP Samsung Galaxy S2 Sim Unlock

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By _RoMe, Junior Member on 30th September 2012, 08:40 AM
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Hello,

I have a Samsung Galaxy S2 that is SIM Locked to UK's 3 Network. I was able to root the phone and unlock it when I was running on Android Gingerbread, and worked well even after updating to ICS till a couple of days ago when it started asking for SIM unlock code.

I've tried reseting the phone to the factory definitions and reeintalling an unsecure kernel so I could run Busybox and the Samsung S Unlock apps that I've used the first time I've unlocked the phone. Even tried installing a diferent region Kernel but it just resulted in a number of crashing processes.

Also locked at this thread but I was unable to locate the nv_data-bin file on my phone even with android commander.

Can anyone give me some hints on how to unlock this phone?

Thank you in advance

PS: Kernel version is the XWLPT
30th September 2012, 09:37 AM |#2  
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Try restore your EFS

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30th September 2012, 02:04 PM |#3  
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Quote:

Hello,<br />
<br />
I have a Samsung Galaxy S2 that is SIM Locked to UK's 3 Network. I was able to root the phone and unlock it when I was running on Android Gingerbread, and worked well even after updating to ICS till a couple of days ago when it started asking for SIM unlock code.<br />
<br />
I've tried reseting the phone to the factory definitions and reeintalling an unsecure kernel so I could run Busybox and the Samsung S Unlock apps that I've used the first time I've unlocked the phone. Even tried installing a diferent region Kernel but it just resulted in a number of crashing processes. <br />
<br />
Also locked at this thread but I was unable to locate the nv_data-bin file on my phone even with android commander.<br />
<br />
Can anyone give me some hints on how to unlock this phone?<br />
<br />
Thank you in advance<br />
<br />
PS: Kernel version is the XWLPT

Use Galaxsim Unlock:http://forum.xda-developers.com/show....php?t=1846451

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30th September 2012, 06:22 PM |#4  
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Quote:
Originally Posted by aliocha21

Try restore your EFS

Envoyé depuis mon GT-I9100 avec Tapatalk

Sorry but I«m can of new to this... But bow can I reply my EFS folder? I've tried googling but haven't found any really good answers.
30th September 2012, 07:16 PM |#5  
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Your can try Galaxy S Unlock from Market . It's ok for unlock your simcard .
But look at your sdcard if you've got some files efsbackup.tar.gz . If not , your have no backup and sorry i can't help you .

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13th December 2012, 04:09 AM |#6  
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same problem here,, flashed with custom rom and sim card suddenly locked again.
but i've backup the efsbackup.tar.gz file and how do i unlock it back?
oh btw, is the file nv_data.bin.unlocked in galaxy_s_unlock folder is the unlocked one?
13th December 2012, 04:26 AM |#7  
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Use this...

http://forum.xda-developers.com/show....php?t=1846451
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13th December 2012, 04:44 AM |#8  
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Quote:
Originally Posted by vanisleryan

Use this...

http://forum.xda-developers.com/show....php?t=1846451
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thanks, but it i dont have any credit card setup in google account, in fact i dont have any credit cards.
is there any other options just using files unlocked before i flashed this rom?
this phone was unlocked using galaxy s unlock by helroz, there are galaxy_s_unclock folder in my root sdcard.
can i just use that file only to unlock my phone again?

13th December 2012, 04:44 AM |#9  
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Have you tried googling first... There are alot of solutions on xda... Better try the one jokesy recommended

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13th December 2012, 05:55 AM |#10  
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This one saves Me..
Thanks

Quote:
Originally Posted by boambee09745

The older version of Galaxsim Unlock worked for me.

found here:
http://forum.xda-developers.com/atta...4&d=1345769517


The carrier is often not a great help and they sometimes charge a fee for unlock code. Plus the waiting time is frustrating.
I contacted support where i bought my phone and they provided no help.

It seems my phone was originally locked to O2 telefonica even though I bought it "unlocked" online. I suspect a lot of the grey imports have this problem as they temporarily unlock it and then sell it as unlocked. If you need help unlocking it again they're not interested...

I will stick to only Google branded/play store from here on, then I wont need to flash (or wait until the phone is obsolete) before finally getting an update via Samsung.

my phone GT-I9100 on XXLPQ and CF-root

13th December 2012, 06:32 AM |#11  
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Quote:
Originally Posted by FiKsTyLeR

thanks, but it i dont have any credit card setup in google account, in fact i dont have any credit cards.
is there any other options just using files unlocked before i flashed this rom?
this phone was unlocked using galaxy s unlock by helroz, there are galaxy_s_unclock folder in my root sdcard.
can i just use that file only to unlock my phone again?

This is free for xda users as far as I know

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