Operating Instructions
29
The mobile phone
is not in a service
area of the GSM
network
Move to the network operator's service area
The signal is weak Move to a place where the signal quality is high
The battery cannot
be charged
The charging
voltage does not
match the voltage
range indicated on
the charger
Ensure the charging voltage matches the voltage range indicated on the charger
An improper
charger is used
Use the charger specially designed for the mobile phone
Poor contact Ensure the charger plug is in good contact with the mobile phone