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39
Troubleshooting�������������������
Before contacting the service centre, you are advised to follow the
instructions below:
•
You are advised to fully charge (
) the battery for optimal
operation.
•
Avoid storing large amounts of data in your phone as this may
affect its performance.
•
Use
Factory date reset
and the upgrade tool to perform phone
formatting or software upgrading (to reset factory data, hold down
the
power
key and the
Volume up
key at the same time). ALL
User phone data: contacts, photos, messages and files, downloaded
applications will be lost permanently. It is strongly advised to fully
backup the phone data and profile via ONETOUCH Center before
doing formatting and upgrading.
and carry out the following checks:
My phone cannot be switched on or is frozen
•
When the phone cannot be switched on, charge for at least 20
minutes to ensure the minimum battery power needed, then try
to switch on again.
•
When the phone falls into a loop during power on-off animation
and the user interface cannot be accessed, press and hold the
Volume down key to enter Safe Mode. This eliminates any abnormal
OS booting issues caused by 3rd party APKs.
•
If neither method is effective, please reset the phone using the
Power
key and the
Volume up
key, (holding both together).
My phone has not responded for several minutes
•
Restart your phone by pressing and holding the
Power
key.
My phone turns off by itself
•
Check that your screen is locked when you are not using your
phone, and make sure the
Power
key is not mis-contacted due
to unlocked screen.
•
Check the battery charge level.
My phone cannot charge properly
•
Make sure that your battery is not completely discharged; if the
battery power is empty for a long time, it may take around 20
minutes to display the battery charger indicator on the screen.
•
Make sure charging is carried out under normal conditions (0°C
to +40°C).
•
When abroad, check that the voltage input is compatible.