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SIM card. The SIM card is damaged. Replace it.
3. 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.
4. Unable to dial out: Maybe you have set Hide My Caller
ID but your network operator does not provide this
service for you. Strong interference exists around you.
Maybe you have activated the call restriction function.
Maybe you have activated Line 2 but your network
operator does not provide this service for you.
5. Unable to charge the battery: The battery may
discharge too much; so it cannot be charged until it is
connected for certain time. Its performance has
worsened.
6. Unable to register to the network: Too weak signals or
strong interference.SIM card installed properly? Bad
contact or SIM card damaged? If the SIM card is broken,
please contact the network operator to replace it.
7. Photos taken are too dark: Check if the too low photo
brightness is set. Check if ambient ray is too dark.
8. Photos taken are too unclear: Check if the object taken
is moving. Check if the mobile phone shivers slightly
while you press shutter.
9. Photos taken is distorted: The object taken may be too
close to camera lens.
10. Unable to access service menus: Maybe the SIM card
does not support service function.
