15
Display
information while
turning on
Check if the SIM card (insert the SIM card) is installed correctly
Handset lock password. If the handset lock is activated, you have to
input handset password before using.
Input PIN. Inputting PIN while turning on each time is activated, you
have to input the PIN code.
Input PUK code: Having input wrong PIN code for 3 times straight
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 improperly
In an area with poor receiving condition, example: basement, the
signal might be weak. Try reaching 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 be unable to call because of line
congestion.
Standby duration
shortened
The standby duration is relative to the system setting of network.
While the mobile phone is in an area with poor signal strength and
can not 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 a new battery.
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.
Unable to dial out
Please confirm if you pressed the dial key after dialing.
Please confirm if calling is forbidden because of default settings.
Please confirm if the SIM is valid.
Please confirm if the call barring is set.
Please confirm if the fixed dial function is set.
Summary of Contents for iris503
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