I know that the go phone has to be unlocked, but i was just wondering if i could just put the t-mobile sim card in the cingular go phone, or do i need a go phone sim card?? can someone please clarify?Can i use a t-mobile sim card in a cingular go phone?
As long as the phone was unlocked, you won't have a problem. But if it's not unlocked, then it will only work on AT%26amp;T network.Can i use a t-mobile sim card in a cingular go phone?
It will only work the other way around. You can use a t-mobile phone with cingular/att phone but you can not use a t-mobile phone for a cingular/att phone. The unlocked phone here is the t-mobile.Can i use a t-mobile sim card in a cingular go phone?
No you would have to purchase an at%26amp;t sim card. When the manufactuers make the phone they lock them to a specific carrier. If you activated the gophone and its still active you can call at%26amp;t and request a subsidy unlock code. and then the tmobile sim will work.