Haier SG71204HC-C380 User Manual page 45

Common problems Check item
Can not charge Please check if the charger is properly connects to
the phone and the power source jack.
Can not power on Please check if the battery level is too low;
Please check if the batter is properly loaded;
Please press Power Key enough time.
Insert the R-UIM card but Please check if properly inserted the R-UIM card;
can not read the information
Please check if your R-UIM card is valid.
in the R-UIM card
The mobile phone displays Please communicate with the service provider to
"Input PUK Code" get the PUK code and use it to unlock.
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.
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