T-Mobile: How to activate a new SIM card
Youll need a number transfer PIN for this You may find it easier to activate your T-Mobile SIM card on your computer as ...
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Metro by T-Mobile: How to activate your SIM card
If you have one of the compatible Metro by T-Mobile Android ... need to buy a SIM card kit. When you get the SIM card, insert it into the tray on your device and activate it.