Yes, but the iPhone 3GS will probably only work on the slow EDGE network because it lack's the proper antennas to use T-Mobile's strange bands of 3G and 4G.
You can put any SIM card in an unlocked cell phone.
no you cant put tmobile sim card into a at&t phone- since it is a different company and provider the sims cards are toatlly different
the iphone is from att and am looking to put it onto tmobile and the phone is not under contract and was under att next
When you buy a tmobile phone it camoes with a sim card. If you already have a tmobile phone and break it you can buy a pre-paid phone and put your old sim card in it
no
Yes you can. You can put any tmobile sim card into any tmobile or unlocked phone and it will work perfectly. Although you may need to add some features to your plan :)
you can't just put your sim card in it, but there are people who know how to convert the iphones over to tmobile, i have a friend that had it done..some of the applications dont work though so it just depends on what you all want from the iphone. if you just want the phone in general to make calls and text, then you can have it switched over. best adivce is to get out of tmobile!! they are a terrible service with NO costumer service skills and just ridiculous! i left my contract last month and went to att, best decision ive ever made!
No.
No
Yes, but only if you unlock you iphone
any AT&T phone that can take that sort of sim card.
Yes, Yes you can.