FIRMWARE UPDATE
43
TROUBLESHOOTING
Issue Solution
The Device doesn’t re-
spond on screen touches
or keys pressing
Restart the Device: press and hold power
button for 10 seconds until the Device
goes off. If you will continue holding
power button for 5 more seconds, the
Device’s power management system will
completely reboot. To switch the Device on,
press again the power button as usual.
After turning on the De-
vice only splash screen
is displayed (the lock
screen isn’t loaded)
• Turn the Device off by continuous power
button press
• Press and hold Volume + button and
switch the Device on by pressing power
button
• Android system recovery menu will appear
(Android logo with exclamation mark). Now
you can release Volume + button
• Select wipe data/factory reset using Vol-
ume +/- hardware keys and press On/Off key
to confirm choice.
• Select yes – delete all user data and
press Menu
• Under service menu select reboot sys-
tem now and press Menu
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