Some GSM networks slow down during peak time or when they have
equipment problems
Unit is sleeping or in power down mode
Cancel sleeping mode or power down
Wrong password in your SMS or wrong SMS
format
Write correct password or SMS format
The SIM has run out of credit
Replace or top up the SIM card
Problem: Green LED is Flashing (1 second on and 2 seconds off)
Check with a mobile phone to see if there is a signal in the area or try to call
the unit to see if you hear a ring tone
Insert a working SIM card. Check in phone that the SIM can send SMS
message.
Check in phone that the SIM can send SMS message. Replace SIM card if
needed
Remove PIN code by inserting SIM in your phone and deleting the code
Inspect SIM, clean the contacts. If re-inserting does not help try another to
see if it will work
If you are in a different country your SIM account must have roaming
enabled
Recharge the unit and the GSM will start working
Problem: Blue LED is Flashing (1 second on and 2 seconds off) or the SMS received starts with ‘Last…’
Unit does not have clear view of the sky
Move the unit to a location where the sky is visible. Tall buildings, trees, and
heavy rain can cause problems with the GPS reception.
Place the front side of device towards sky
Recharge the unit and the GPS will start working
Problem: Unit Fails to Connect to Server via GPRS
SIM card does not support GPRS function
Enable SIM card GPRS function
GPRS function is turned off
Incorrect IP address or PORT
Get the right IP address and PORT and reset
Move the unit to a location with good GSM reception
Problem: Unit will not turn on
Wiring was not connected properly
Check and make sure wiring connection is in order.
Problem: Unit will not respond to SMS
GSM antenna was not installed properly
Make sure device is connected to GSM network
Some GSM networks slow down during peak time or when they have
equipment problems
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