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27
Please charge the battery.
Check battery contacts.
Remove and put the
battery back to phone.
Power on.
SIM-card error
Check
SIM
contacts,
integrity.
Use clean fabric to clean
contacts. If
Sim-card doesn`t work
you should contact to your
service provider.
Poor signal
Check the level of signal
on an indicator that is
located in the right corner
of the screen. 5 bars
indicate strong signal, less
than 2 bars indicate weak
signal.
Unable to dial out Move to the area with
better network signal. If
Sim-card doesn`t work