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• Check your subscription status with your operator.
The phone can't be detected by others via Bluetooth
• Make sure that Bluetooth is turned on and your
phone is visible to other users.
• Make sure that the two phones are within Bluetooth’s
detection range.
The battery drains too fast
• Make sure that you follow the complete charge time
(minimum 150 minutes).
• 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
authorised repair centre, but remember that it will
not be regarded as warranty case.
The phone doesn't ring when a call or message arrives
• Make sure that Do Not Disturb mode is not turned
on. Go to Settings > Sound > Do Not Disturb.
• Press the Volume key to adjust volume.
I forget some passwords/codes/keys on phone
• Perform a factory data reset.
• If you still cannot access your phone, apply to the
authorised repair centre, but remember that it will
not be regarded as a warranty case.