原帖由： Abdul Galib

文本:

try factory reset

Turn off your cell phone.

press and hold Volume Down + Menu button + Power button.

If you see menu of Recovery mode, then release your fingers from the phone.

now select "wipe data/factory reset" using Volume buttons to navigate, and Power button to choose.

Afterwards accept operation "Yes -- delete all user data".

select  "reboot system now".

Done!

Remember you will lose all your files and data

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