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Annex 2. Troubleshooting
Problem: Unit will not turn on when pushing the power switch to On side
Possible Cause:
Resolution:
Power switch was not pushed properly
Make sure the power button is pushed to On side
Battery needs charging
Recharge battery for 3 hours
Problem: Unit will not reply with SMS
Possible Cause:
Resolution:
Green LED is flashing (1 second on and 2
seconds off)
Make sure GT30i is connected to GSM network
GSM Network is slow
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 in GT30i has run out of credit
Replace or top up the SIM card
Problem: Green LED is Flashing (1 second on and 2 seconds off)
Possible Cause:
Resolution:
No GSM signal
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
No SIM card
Insert a working SIM card. Check in phone that the SIM can send SMS
message
SIM card has expired
Check in phone that the SIM can send SMS message. Replace SIM card if
needed
SIM has PIN code set
Remove PIN code by inserting SIM in your phone and deleting the code
SIM is warped or damaged
Inspect SIM, clean the contacts. If re-inserting does not help try another to
see if it will work
Roaming not enabled
If you are in a different country your SIM account must have roaming
enabled
Battery is low
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…’
Possible Cause:
Resolution:
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.
Bad GPS reception
Place the front side of GT30i towards sky
Battery is low
Recharge the unit and the GPS will start working
Problem: Unit Fails to Connect to Server via GPRS
Possible Cause:
Resolution:
SIM card in GT30i does not support GPRS
function
Enable SIM card GPRS function
GPRS function of GT30i is turned off
Turn on GPRS function of GT30i
Incorrect IP address or PORT
Get the right IP address and PORT and reset to GT30i