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Nightmare.. Only wanted to unlock my phone.


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Hey everyone,

This is my first post on this forum.


I felt i needed to put my experience out here to to see if anyone could give me a answer to my problems.


I have a Galaxy s2 on Movistar (a Spanish provider)


When i first got my phone i rooted it after a few weeks of having it, in a attempt to unlock my phone using a free app as i was going abroad.

It wasn't successful.


A few months later coming back from my trip abroad i updated my phone to 4.0.3.


Now going abroad again i needed to get my phone unlocked and visited a shop today that was recommended to me by a friend.


after having some trouble updating my phone to ICS 4.0.3 i got paranoid and noted down all the information for that phone, Just in case i needed them.


so in the shop the guy takes my phone and goes into the back room and tells me it will take 10mins.

He comes back 5mins later and tells me he needs to roll back the firmware to 2.3.6 but reassures me that he will upgrade it to 4.0.3 once it is unlocked,

Ok i agree and let him do what he needs to do.


30 mins later he comes out and tells me my phone doesnt have enough battery to upgrade it to 4.0.3 but claims that it is now unlocked.

Luckily my father was on hand with his Galaxy S2 and offers me his battery. (now 40mins into the process i wasn't about to walk away with a half assed job)

So we waited and a hour later he walks about and tells me that my phone wont accept the update for 4.0.3 and that he is downloading the firmware to flash it to 4.0.3.

He told me to come back after lunch and he will upgrade it if i want him too.


I told him it was ok and i was happy with 2.3.6 as long as my phone works.


Now home and tested my new unlocked phone with various sim cards i was happy with the result.

Untill a few moment ago i attempt to connect it to my pc to transfer the data i lost during the flashing and unlocking process.

my pc wont recognize the device.


Here are my before and after notes that i took down.




Model Number: GT-I9100

Android Version: 4.0.3

Basband Version: I9100BGLP2

Kernel Version: 3.0.15-I9100BGLP8-CL317471 [email protected]#3

Build Number: IML74K.BGLP8



Phone: I9100BGLP2

CSC: 19100XECLP5

H/W Version: Rev1.5



Model Number: GT-I9100

Android Version: 2.3.6

Baseband Version: I9100BVKL1

Kernel Version: [email protected]#2




Phone: I9100BVKL1


H/W Version: Rev1.4


The firmware installed is nothing like my previous version of GB as it is now the Orange (the service provider) version of the firmware.


The only real problem i am having is with connecting it to my computer.


I was also wondering if anyone could offer me up a solution for getting it flashed back to my old firmware...

Now that the phone is unlocked can i flash it to whatever my hearts content ?

Does anybody know how the unlocking processes works?


Thanks for your time reading.


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  • 4 weeks later...
  • 1 month later...

Jake, if your phone is rooted you can flash to whatever you'd like however many times you'd like. Unlocked is a different thing, I'll bet, it sounds like, he rolled you back onto a stock firmware which you have to have to get ICS 4.x.x.


I took another look at your post and it is stock firmware. You have to go through the rooting process if you want to flash a custom ROM.


Head over to XDA Developers ( http://forum.xda-developers.com/forumdisplay.php?f=1058 ) for all the stuff you'll need for that.

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  • 5 months later...

Every phone have their unlocking code, simply get those unlocking codes and it will help you out to unlock your phone. You will be able to get those codes from your near by store or from Internet.

That's true . I unlocked my Samsung Galaxy S2 using codes I got from Superunlockcodes.com . There they provide unlock codes along with instructions on how to unlock for many mobile phones.

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