I wonder know if I can unlock my old cellphone, I just got a new IPhone from Tmovil
If you meet the requirements.
Unlock your mobile wireless device
As mentioned by gramps you must meet certain requirements. You can call in to put in the unlock request, do it from the website, or from the app if the phone has it.
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Manage your T-Mobile account
Use the T-Mobile App or your My T-Mobile account
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