32
Unable to
switch on
1.
Does the battery have
power?
2.
Is
the
battery
placed
correctly
SIM failed
1.
The SIM card is dirty. Clean
it.
2.
Reinstall the SIM card.
3.
The SIM card is damaged.
Replace it.
Poor signals
Check the signal strength icon on
the screen. If the icon contains 4
bars, it indicates the signal is the
strongest; if below 1 bars, it
indicates the signal is very poor.
Содержание MM705
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