Ok so I had my GS2 unlocked by Tmobile im trying to use an at&t prepaid Sim card but it will not recognize it....like no Sim is inserted... Any help !!!
Try to reinsert the SIM card. If that doesn't work, ask AT&T for a new SIM card.
What SIM card did you use to unlock your phone?
I used a non activated att Sim to unlock....I just bought a new prepaid Sim but it wont recognized...
I think you have to call At&t to give the the IMEI number in order to get it to work.
Ok thanks I will try that
In the other hand I have another att Sim that used to be activated and at least I have signal bars with the actuvated one it wont even recognized it :-(
Did contacting AT&T or replacing the SIM card resolve your issue?
at&t can not help and the sim is brand new no need to replace it...i have two at&t sims one that is in contract that one work fine the other one is a prepaid bt the gs2 wont recognize it at all...
I think that I have heard that for GoPhone service, that you may have to call AT&T and give them the IMEI of the device. I didn't have to do this when I used GoPhone, but I have heard somewhere that others have had to do this.
will try with another at&t customer rep or via chat and see..
ok so just got off the phone with at&t gophone sims are locked to the phone that it was activated with...and yes they will unlock the sim....tnx all for the help...
OK, that makes sense. I just got a GoPhone SIM card without the phone when I had that service.
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