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AT&T SIM CARD WORK W/ T-MOBILE PHONE?????

by qbo2537 / July 2, 2004 9:09 AM PDT

i am about to purchase a phone but it was used on a t-mobile service. can i use my AT&T sim card in the t-mobile phone? any help would be greatly appreciated


thanks

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Re: AT&T SIM CARD WORK W/ T-MOBILE PHONE?????
by usafguard / July 31, 2004 3:45 PM PDT

In a word...no. While both carriers are GSM and on the same frequency, the phone are locked to a carrier. You can do an internet search for GSM phone unlock codes. The unlock code will unlock the carrier code so it can be used on any GSM service provided you have an active sim card for that carrier.

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Re: AT&T SIM CARD WORK W/ T-MOBILE PHONE?????
by thejer / August 3, 2004 7:45 AM PDT

About a year ago, I tried this (I'm on cingular, friend is on t-mobile). My friend could use his t-mobile sim card in my phone, but I couldn't use my cingular sim card in his phone...

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Re: AT&T SIM CARD WORK W/ T-MOBILE PHONE?????
by strykernyc / August 5, 2004 11:04 PM PDT

i can tell u that my friend is using a sin card from t-mobile on a japanesee cell phone that is not even for sale or ever here. do as they said get the codes hack the phone this is a free country u have the choise

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