GSM POWER SOCKET USER MANUAL
35
No.
General
Trouble
Possible Reason
Solution
SIM card PIN code
actives.
Close the PIN code.
SIM card invalid.
Contact with local
operator to check of it.
7
The master
number
already
exists.
Other master is
already set in the
socket.
Change Master
number or recover to
factory default setting.
8
Invalid
format.
Please check
and try again.
Invalid command.
Refer to the user
manual.
9
No
authorization
user
Use the Master
mobile phone to try
the command again.
Note
: If
the problem can’t be solved with above guidelines, contact to
your local distributor or after service center.