Only if the T-Mobile phone is unlocked. If the T-Mobile phone is still locked, only T-Mobile SIMs will work.
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.
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.
about 10 bucks and maybe an activation fee
The sim card will only work in a different phone if the phone is ulocked, in not, no
bb9b cell phone is unlocked cell phone. it work with att & tmoble. i guess it works with all gsm network, but i never test it. anyone else?
yes
I work for ATT and you must leave the data plan. IF you deleted the data plan, the phone will not work. Hope this helps
hi i have a go phone att will it work in Guadalajara Mexico if it doesn't what prepaid company from the us work over there need a answer quick will leave in a month
No. Okinawa has no GSM carriers, only CDMA.
Env would not work on ATT as the phone would not be compatible to the technology used by the carrier. Env is a CDMA phone, while ATT is a GSM phone, and these two technologies are not compatible with each other.
An AT&T Go Phone is a prepaid phone that you buy phone cards for and add talking time to your account. There is no contract for a Go Phone.
Att is a Internet , Cable , and Home phone company. There is no 1 thing that att does