22
Fail to
connect to
network
In case of Weak signal, please try and move to a location with strong
signal and try connecting to the network again; Please ensure that you are
not beyond the network coverage of service providers; Please ensure you
have a valid SIM card. Please contact your network provider for further
information.
Display
information
while
turning on
Check if the SIM card is installed correctly Handset lock password: If the
handset lock is activated, you have to input handset password. Input PIN:
if Inputting PIN while turning the phone on each time is activated, you
have to input the PIN code. Input PUK code: When you’ve input wrong
PIN code for 3 times will lock the SIM card. You need to input the PUK
code provided by your network provider.
Poor quality
of calling
Please check if the sound volume is tuned properly In an area with poor
network conditions, example: basement, the signal might be weak. Try
searching a location with stronger signal reception and call again. While
using the mobile phone in the peak period of communication, like
commute time, you may not be able to call because of line congestion.
Standby
duration
shortened
The standby duration is relative to the network systems. While the mobile
phone is in an area with poor signal strength and cannot receive the signal,
the handset will continuously search for a base station. This will
significantly reduce battery charge. It is recommended that you turn off
your mobile in area with no signal reception to save battery. Need
replacing the battery: Please change to a new battery as battery
performance may decrease after prolonged usage.
SIM Card
Error
Dirt on the metal surface of an SIM card: Use clean cloth to wipe the metal
touch point on an SIM card. The SIM card is not installed. The SIM card is
damaged. Please contact your network service provider.
Fail to dial
out
Please check if you press the dial key after typing the number. Please
check if calling is forbidden because of default settings. Please check if the
SIM is valid. Please check if the call barring is set. Please check if the
fixed dial function is set.
Callers
cannot
contact you
Please check if the mobile phone is on and connected with the network.
Please check if the Call barring or call divert is activated. Please check if
the SIM card is valid.