i-mobile IQ 511 User Manual page 40

FAQ
Display
information
while
turning on
Poor quality
of calling
Standby
duration
shortened
Cause and Solution
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: Inputting PIN while turning 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.
Please check if the sound volume is tuned
improperly
In an area with poor receiving condition,
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 be unable to call because of
line congestion.
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
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