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Insert the R-UIM card but
can not read the information
in the R-UIM card
Please check if properly inserted the R-UIM card;
Please check if your R-UIM card is valid.
The mobile phone displays
“Input PUK Code”
Please communicate with the service provider to get
the PUK code and use it to unlock.
Receiver sound is too low
The mobile phone has a
weak receive signal or
usually drop in the phone
call
Can not make phone call Please check if the phone number is valid.
Please check if you are in service area.
Weak talk quality
Please check if the phone signal is strong enough;
If you are in the building, please move the phone or
move near the window.
The contact can not get
your voice when making
phone call
Please check if your mic has blocked by fittings or
other blocks.
Please check if your receiver volume has been
adjusted to the minimal.
Please check if the phone has a strong signal.
If no signal, please use it in a strong signal place.