8.
Insert SIM card error
1. Check whether the SIM
card is dirty. If the card is
dirty, clean it;
2.Reinstall the SIM card;
3.If the SIM card is
damaged, replace the SIM
card.
Low Network
Check the signal strength
indicator on the screen. 4
bars indicate a strong
signal, and 2 bars or less
indicate a week signal.
Call registration fails
1. You might have set the
Hide Caller ID but the
network operator does
not support this service;
2.There may be strong
signal interference;
3.You might have
activated the Call Barring
function;
4.You might have
activated Line 2 but the
network operator may
not support this service.
Battery fails to charge
1.The battery may have
been excessively
discharged. To charge the
battery, it is necessary to
connect it to a charger for
a certain period of time.
2.The battery may have
been deteriorated.
Cannot connect to the
network
1. Check whether the
signal is too week or
wireless interference
exists around;
2.Check whether the SIM
card is installed correctly,
poor connection exists, or
