Here is a link that shows how to perform a 'soft' (wipe cache partition) and a 'hard' (master reset with hardware keys) reset on your phone.
'''Perform the soft reset first '''and see if it resolves your problem, if not perform a hard reset.
A soft reset does ''not'' erase any of your apps or data
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''Be aware the a hard reset will erase all your downloaded apps and user data. It will restore your phone to a factory default condition. It will be like when you first bought it.''
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''Be aware that a hard reset will erase all your downloaded apps and user data. It will restore your phone to a factory default condition. It will be like when you first bought it.''
Before you perform a hard reset ensure that the battery is charged.
Do not leave the charger connected when you perform a hard reset.
Hi,
Here is a link that shows how to perform a 'soft' (wipe cache partition) and a 'hard' (master reset with hardware keys) reset on your phone.
'''Perform the soft reset first '''and see if it resolves your problem, if not perform a hard reset.
A soft reset does ''not'' erase any of your apps or data
''Be aware the a hard reset will erase all your downloaded apps and user data. It will restore your phone to a factory default condition. It will be like when you first bought it.''
Before you perform a hard reset ensure that the battery is charged.
Do not leave the charger connected when you perform a hard reset.
Remove the SD card (if there is one inserted).
https://support.t-mobile.com/docs/DOC-9478
Be patient, it takes a few minutes.