not be functional after using the phone
for over a year.
Is the battery completely discharged?
The phone must be connected to a
charger for a longer period of time until
charging starts. It can take tens of
possible to log
into the
operator
network
The signal is too weak, or there
may be some interference. Check the
signal strength according to the icon
on the phone's screen, whether
displays vertical lines.
Is the SIM card inserted correctly?
Isn’t there a poor contact? If the SIM
card is damaged, contact your
network operator for replacement.
cannot be
made
Is the phone logged in the
operator network?
Is the Call blocking inactive?
Do you have a sufficient credit?
calls cannot
be received.
Is the phone logged in the
operator network?
Do you have a sufficient credit?
Is the Call forwarding inactive?
Is the Call blocking inactive?
locked after
entering wrong PIN
code three times
Enter the PUK code which you
received from your operator or
contact the operator.
The SIM card contacts are
dirty. Clean them.
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