GSM POWER SOCKET USER MANUAL
34
Chapter 5 General Troubleshooting
No.
General
Trouble
Possible Reason
Solution
1
Power
indicator light
turns off
No power input.
Check
GSM Power
Socket
’s external AC
power is available.
2
GSM
indicator light
turns off
Can’t find or identify
the SIM card.
The power switch is
OFF.
SIM card no install
properly: Power off
the socket and check
it again.
Power on the socket.
3
Socket
output cannot
be changed
by M button.
No power input.
The power switch is
OFF.
Check
GSM Power
Socket
’s external AC
power is available.
Power on the socket.
4
All functions
disable
(Indicator is
working)
Caller ID
presentation do not
active, insufficient
fee of the SIM card.
Contact network
provider to active SIM
card function. Pay for
the card.
5
Socket
didn’t
response of
any
operation.
GSM Power Socket
work abnormally.
Switch off the power,
check SIM card, or
reset factory setting.
6
After power
on the
socket, GSM
indicator
keeps
flashing.
Network signal
weak or network
busy.
If mobile phone’s
signal is weak too,
place the socket at
other place with
strong signal and try
again.