User's Manual

Troubleshooting
40
Use Factory data reset and the upgrade tool to perform device
formatting or software upgrading (to reset factory data, hold down
the Power key and the Volume up key at the same time). ALL User
device data: contacts, photos, messages, files, and downloaded
applications will be permanently lost. It is strongly advised to fully
backup the device data and profile via Smart Suite before doing
formatting or upgrading.
and carry out the following checks:
My device cannot be switched on or is frozen
When the device 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 device 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 device using the
Power key and the Volume up key, (holding both together).
My device has not responded for several minutes
Restart your device by pressing and holding the Power key for
more than 7s.
My device turns off by itself
Check that your screen is locked when you are not using your
device, and make sure the Power key is not mis-contacted due to
unlocked screen.
Check the battery charge level.
My device cannot charge properly
Make sure you are using a universal charger which complies with
these characteristics: micro-USB connector, 5V, min 1A output.
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.
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