Can not power on
Insert the R-UIM card but can
not read the information in the
Can not make phone call
Weak talk quality
The contact can not get your
voice when making phone call
Please check if the battery level is too low;
Please check if the battery is properly loaded;
Please press Power Key enough time.
Please check if properly inserted the R-UIM card;
Please check if your R-UIM card is valid.
Please check if the phone number is valid.
Please check if you are in service area.
Please check if the phone signal is strong enough;
If you are in the building, please move the phone or
move near the window.
Please check if your mike has blocked by fittings or