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In order to use a T-mobile Sim card in an AT&T phone the phone would have to be "Unlocked". Most phones sold in the US are locked to one specific network ie. AT&T, T-Mobile, TracFone. You would first need to have someone remove the network lock from the phone for you.
My palm centro wont identify my sim card! It says check sim. i tryed to put my boyfriends sim in there too and it said the same thing.! what do i do?
by yassypooh on September 4th, 2010
| 1 person likes this
will my nokia 2600 sim card work in a pantech matrix
by joennicole on April 19th, 2010
| 1 person likes this
how can i activate my prepaid t-mobile sim card??
by AdiCT0 on July 9th, 2010
| 1 person likes this
What Nokia phone will the sim card from my 6555i be compatible with?
by pandora7321 on August 6th, 2010
| 1 person likes this
can i switch my tmoble service to my sprint blackberry?
by aliciabowens on May 14th, 2010
| 1 person likes this
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