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An AT&T sim card will not work in an T-Mobile phone as it is locked to particular carrier itself...
If you want to put your AT&T sim in your T-Mobile phone you can try unlocking your phone
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∙ 10y ago
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How do you unlock a tmobile sims card to work on AT and T phone?
If you have used TMobile in the past, you can unlock your HTC Touch Pro2 by calling Tmobile. Alternatively, you can purchase unlocking software on websites such as eBay which will allow the unlocked phone to work with an AT&T sim card.
Can you put a tmobile sims card in a at and t 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
Will a sidekick iD sim card work in a sidekick 3?
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 :)
Can you take the sim card out of your straight talk phone and put it into your Android phone i want to take the sim card from my straight talk phone and put it my my tmobile mytouch android?
You can - but - it will only work if the t-mobile phone has been unlocked !
How can you unblock your t-boile phone to work with a boost sim card?
Impossible as even if the phone was unlocked TMOBILE and BOOST work on different technologies one is GSM850/1900 and the other is IDEN
Can you switch your service from tmobile to Verizon while still keeping your tmobile phone?
You mean you want to use your tmobile phone on Verizon network? No you can't. Verizon is CDMA and tmobile is GSM network, so your phone won't work on Verizon netwok
Will napster work on the tmobile g1 phone?
No- not at the moment.
Can a tmobile sid card work on an iPhone?
no unless it is unlocked... .
Does a samsung b3310 work for tmoblie?
yes it does i have that phone and tmobile
Save Money With TMobile Phones?
If the other cell phone carriers seem costly with their monthly contracts, then you should consider getting one of the many TMobile phones. Yes, unfortunately, they don't carry the iPhone, but if you can find a really good deal on an unlocked phone, then you can simply get a TMobile SIM card for your device and it'll work. TMobile has much lower monthly fees than other cell phone carriers, so if you're on a budget, this is for you.
Does a tmobile phone work on a AT and T sim?
Only if the phone is not locked to t-mobile.
What if your daughter lost her tmobile phone Can you buy a new sim card and put it in an old tmobile phone but still keep her number for the lost phone?
You can do this as long as the old phone works with the tMobile network (or is unlocked to work on both AT&T and tMobile). But you need to call tMobile to have them active the new SIM chip. Basically, they need to connect your daughter as a customer to the new SIM. You should be able to take your old phone into any tMobile store and they should do this for you. Cannot say if they will charge you a small activation fee but it should not require another 2 year contract. They may try to push a new phone on you for free or small price so they can lock you into a new 2 year plan.
