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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.