Users Manual

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After a partial charge, the battery level indicator may not be exact.
Wait for at least 20 minutes after removing the charger to obtain
an exact indication.
Adjust the brightness of screen as appropriate.
Extend the email auto-check interval for as long as possible.
Update news and weather information on manual demand, or
increase their auto-check interval.
Exit background-running applications if they are not being used for
extended periods of time.
Turn off Bluetooth, Wi-Fi, or GPS when not in use.
The phone becomes warm following prolonged calls, game
playing, internet surfing or running other complex applications
This heating is a normal consequence of the CPU handling
excessive data. Ending the above actions will make your phone
return to normal temperature.
After a factory data reset is performed, I can't use my phone
without entering Google account credentials
After a reset is performed, you must enter the original Google
account credentials that were used on this phone.
If you don’t remember your Google account credentials, complete
Google account recovery procedures.
If you still cannot access your phone, apply to the authorized
repair center, but remember that it will not be regarded as a
warranty case.
I forgot some passwords/codes/keys on phone
Perform a factory data reset.
If you still cannot access your phone, apply to the authorized
repair center, but remember that it will not be regarded as a
warranty case.