can I put a T-mobile contract sim card in a prepaid AT&T go phone?
YES, but the phone receiving the SIM has to be unlocked when using another carriers SIM. If it is a Nokia it can be unlocked for free at gsmliberty.com / gsmliberty.net and just follow the easy instructions. In your example, you’ll have to unlock the AT&T prepaid phone, nothing special will have to be done to your existing T-Mobile contract phone. Sometimes, the carrier will unlock the phone for free when you call their customer service and convince them you’re traveling to Europe or Asia where AT&T’s networks are spotty and you’ll need a euro providers SIM card to keep using. But since you’re trying to migrate to a pre-paid phone, the odds Cingular GO will unlock it for free are slim, not impossible but you will have to ask for alot of supervisors and practically beg. What you’re proposing isn’t illegal and is a common solution when someones contract phone breaks and they’re faced with another contract extension from their provider to get it replaced/repaired or they’re facing a huge
HI no you can’t use your t-mobile prepaid sim card in AT&T locked phone …To fix this you have to unlock the phone from AT&T network provider ..If you want to unlock your phone then have a look at sites like SuperUnlockCodes.com here they render unlock code for all mobile models at reliable cost ..After unlocking your mobile from AT&T network lock you can freely use it with t-mobile or else any other GSM sim …
