User's Manual

User's manual
43
21. Video player
Play the videos in the storage device.
Six. Common problems and solut
ions
Before and after-sales service contact, follow these simple
checks, you might be able to avoid unnecessary
maintenance time and cost of waste.
Frequently
Asked
Questions
Causes and solutions
Cannot boot

n check whether to hold the power button for
at least one second;
 Check the battery connection is bad, ple
ase remove and then reinstall and retry t
he boot;
 Check the battery power is exhausted, pl
ease charge
；
Unable to
connect to
the network
 n signal weak, please move to the stron
g signal to retry;
 outside the network service provider's net
work to cover;
 SIM card is invalid, contact your network
provider;