User's Manual

12
11 Troubleshooting
Q1: What if water enters the device?
A：
1) DO NOT turn on the device.
2) Disconnect the outlet cable in order to turn it
off instead of pressing the power button.
Disconnect all external devices and then send
to the service center for advice.
Q2: How to check the device if it won’t turn on?
A：
 If the power is low, connect the adapter to
charge.
 Remove the micro-SD card and any other
external device.
Q3: How to restore the factory default settings?
A：Go to Settings---Backup & reset---Factory
data reset to recover the system to the default
status.
Q4: How to prolong the usage time of the battery?
A：
 Adjust the brightness of the touch screen to
proper level on Settings---Display---
Brightness menu.
 Turn down the volume.