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No you can not. The reason is that carriers lock their phones to only be used on their service. The only way you may do this is to go to a T-mobile store and ask if they can unlock it. They may or may not.
There are also services online to unlock your phone, but it is not free.
What else can I help you with?
Can you put att iPhone sim card in an att blackberry?
Yes as long as the phone is att and has a sim card slot
Can i use a att sim card in a trac phone?
Yes, provided your ATT phone is SIM unlocked.
Can you put your att sim card in your tracfone?
Yes, provided your ATT phone is SIM unlocked.
Can a att sim card work in a centennial phone?
The sim card will only work in a different phone if the phone is ulocked, in not, no
Can you use a att sim card in a straight talk phone?
yes u can I had my att go phone unlocked and tried to use my sim card from st. talk which I found out uses att service towers in my area however, it didn't work. It stated "sim crash"
Is it normal for your ATT SIM card to not work in your old phone after inserting it in a new phone?
yes
what unlocked phones can be used with an ATT account We need to replace an ATT phone, don't want to pay retail for a new phone and aren't ready to renew the 2 year contract?
An unlocked phone can accept the SIM card from any cell phone provider. If you have an ATT SIM card, you can use it in an unlocked phone. A locked phone is created by the provider to force the use of its service; an unlocked phone can take any SIM card.
Can you flash a Verizon phone to ATT?
Yes, you can flash a Verizon phone to ATT. However, you will also need to insert a Verizon SIM card into the ATT phone in order for it to properly work.
The definition of an ATT Sim Card and the usage of it for cell phones.?
A sim card is a chip in your phone that holds information as to your phones identity such as your phone number. A sim card can be transferred to another phone allowing you to have to same phone number as well as your contacts.
I bought an unlocked Sony Ericsson s500i if I insert my old ATT GoPhone's SIM card into my new phone will the new phone get locked to ATT?
No the phone should not have a problem with reding the sim card as long as the sony ericsson is unlocked josh
What other phones can your put your iPhone sim card into besides the iPhone for ATT?
any AT&T phone that can take that sort of sim card.
Can you use an att go phone sim card in an unlocked t-mobile blackberry 8900?
No. The sim card would not be inter-carrier compatible.
