Already unlocked sgh-i747 need recover

[ahmad83it]

Hi THERE ,
I have an unlocked AT&T S3 phone and it has been flashed with stock ROM and updates of 4.4.2 has been installed and everything was deleted .
so now , how could i restore or recover the unlock code to use it again to unlock the phone ?
thanks FOR YOUR TIME

 

[Larry2999]

Hi THERE ,
I have an unlocked AT&T S3 phone and it has been flashed with stock ROM and updates of 4.4.2 has been installed and everything was deleted .
so now , how could i restore or recover the unlock code to use it again to unlock the phone ?
thanks FOR YOUR TIME

If the phone was properly unlocked in the first instance, it would be impossible to lock it back again as the unlocking process should survive any firmware upgrade. I'm somewhat puzzled by your question. Could you please clarify? The only way to test if it is still locked would be to put a non-standard SIM inside (i.e. any non AT&T sim). If it requests an unlock code, then it means it was not unlocked at first.

 

[ahmad83it]

Yes I did this I put non-att Sim card and it requests an unlock code
Before flashing it was working 100% without att Sim but now NO

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[audit13]

Were able to use the phone with another carrier's sim card? After fixing your phone, it will only work with an AT&T sim card?

 

[ahmad83it]

Yes it like this
I am wondering from where could I get back the unlock code.

Any way any idea

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[audit13]

Did you buy a code? If you did, the unlock code would not have changed as long as the imei did not change.

If it was unlocked when you received the phone, you'll have to buy another unlock code.

I'm surprised it became locked after it was bricked. I didn't think this would happen.

 

[ahmad83it]

Are there any firmware for unlocked sgh-i747.

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[audit13]

If you are on a stock ROM that is 4.3 or higher, you must buy a code.