User's Manual

5 Troubleshooting
Problems Possible Reason
Can not
turn on
mobile
phone
Whether battery has electricity
Whether battery is placed
properly.
SIM Card
Error
SIM card is dirty，clean SIM card
Re-install SIM Card
SIM card has been damaged，
change SIM card
Poor
Signal
Check the indication mark of
signal intensity on display screen,
5 cases of this sign represent
strong signal, lower than 2 cases
represent weak signal.
Mobile
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