LG Wireless Phone

tmobile phones and att/cingular sim cards

my current cellular service is att/cingular but i want a tmobile sidekick. does anybody know if an att sim card would work in a tmobile phone? my current cellular service is att/cingular but i want a tmobile sidekick. does anybody know if an att sim card would work in a tmobile phone? some people tell me it does work. but idk candice! would it work in a sidekick? and if so, what features wouldnt work?

Public Comments

1. im pretty sure it has to be phone of the same company
2. Yes it would work but you need to get the sidekick unlocked. You also need to know that not all features will be available on the phone because the software has changed. By that I mean internet wont work. Only calling and texting will work on it. By the way, if your wanting AIM just sign up for IM Forwarding on aim.com. Then people can IM you and you can IM people as well. The IMs will come in your text inbox and will be billed for text message usage. The only down side of this is that you cannot see your buddy list.
3. Some att sim cards will work but you would have to unlock the phone. I doubt it would work with a sidekick though. I have a Sidekick LX and my friend tried to use her att sim card on my LX but it didnt work..