STP Lite User Manual Revision 1.02
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Chapter 5: Troubleshooting
Problem No' 1:
Unable to read or write data from the
configuration menu
Solution suggestions
In case that the unit is not new (have been used before) press the reset
button and right away click on the read or write configuration to device.
There is a five seconds window timer that lets you read or write to the
device before it starts to configure itself. If you missed the five seconds
window you could do the reading or writing after the unit finished
restarting.
Check if the reading or writing request is not preformed during SMS
sending or call making.
Check if the connection from the unit to the computer is ok and every
thing is connected flawlessly.
Problem No' 2:
Can't send/receive calls, SMS, GPRS
When you have a trigger response that needs to send an SMS or make
a call , or send a GPRS message and you aren’t receiving it. There can
be some problems making this situation.
Solution suggestions
General suggestions
Check if the antenna is connected properly.
Check if the SIM card is placed in the sim card holder properly.
Check if the destination phone is able to receive SMS or open to
incoming calls.
Check the green led and see if the light is constantly on. If so see
problem No'3.
SMS suggestions
If you see that an SMS is sent (the red led is flashing and the program
wrote that SMS has been sent) and you didn’t receive it immediately,
wait for a couple of minutes, maybe the mobile phone network is busy,
and it takes time.
Check in the SMS output event the phone number, see if it matches
the desired number
