User's Manual

GT300 User Manual
13
Unable to turn on the
device
The battery is empty. Look at the remaining
electricity or recharge.
SIM card malfunction SIM card is damaged. Contact your network service
provider.
SIM card is not properly
inserted.
Confirm SIM card is properly
inserted.
There is a foreign substance
on the metal surface of the
SIM card.
Use a clean cloth to wipe off
the metal contact point of the
SIM card.
Unable to connect with
the network
Expired SIM card Contact your network
provider.
Outside the GSM service
area
Consult your network
provider on the service area.
Poor signal. Please move to a place with
a better signal and try again.
Incorrect PIN number Consecutively enter the
wrong password three
times.
Contact your network
provider.
Unable to charge Battery or charger is
damaged.
Replace the battery or
charger.
Recharging in the
environment of less than
-10℃or higher than 45℃.
Change the charging
environment.
Poor contact Check if the plug is properly
connected
8.2 Safety info
¾ Please do not immerse the device in liquids.
¾ Please do not store the device in wet, dirty or dusty environments.
¾ Please do not expose the device to extreme temperatures.
¾ Please do not place the phone in or near microwave emitting devices.
¾ Please do not operate or store the device near flammable materials.
¾ Please do not use the device in restricted areas without permission.
¾ Avoid dropping, throwing or putting heavy pressure on the device.
¾ Please do not attempt to, or actually open, or alter the device or any of its accessories
from its casing in any way.
¾ Only use authorized approved accessories with the device.