GoPass AVL-900 Troubleshooting
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GoPass AVL-900 Troubleshooting

Tracking kit
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A. Power On/ Off Problem:
1. GPRS LED flashes always after power on:
The device is sending GPRS message continuously.
Use your mobile to send a SMS Command Code
B. Position Fix Problem:
1. The GPS LED will turn from steady orange light to flash orange after gets a position fix. Please check if
the GPS LED can change from steady light to flash orange light.
2. If GPRS LED can not turn off after power on, the firmware can not be ready to run. If you find the green
GPRS LED blinks always after power on, please send a SMS Command Code
stop the GPRS transmission. (If you had installed our Track Software in your PDA Phone, you can also go to
<TRACK> <GPRS> <SET GPS delivery time
transmission of GPRS data).
C. SMS Track Software:
1. Command 115#8888#30: SMS reports time interval must be an integer
Please add a "#" mark to the end of the command – i.e. 115#8888#60#. Please note "#" has to be added
=>
to end the commands for firmware version V.1.6. Accordingly, the command to set time interval should
be 115#8888#30#; the command to set the current time should be 130#8888#yy/mm/dd,hh:nn:ss#; etc.
2. Command 130 (set current time): SMS reports command sent to set the current time is not correct
=> The problem can be solved when you turn off & on AVL-900. It is because the Java clock and the module
clock of Siemens TC65 GSM Module can be synchronized only when re-boot.
3. In command 600 (set APN) uses parameter IP. What is IP ? In example it is 0.0.0.0.
=> 0.0.0.0. is for DNS setting. If mobile operator does not specially specify the DNS IP, please input 0.0.0.0;
the system will assign automatically a correct IP site to you.
4. SOS message is sent continuously, and SOS LED flashes always
=> Please send a SMS Command Code
installed PDA Track Software into your PDA Phone, you can tab
the transmission of SOS message.
AVL-900 Trouble Shooting
115#8888#-1
interval>, tick
506#8888
to GPS-911 to stop the sending of SOS message. If you have
to AVL-900 to stop the transmission.
115#8888#-1
<Disable delivery>
<SEND>to discontinue the
<SOS> <Reset SOS Status> <SEND>
to GPS-911 to
to stop

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Summary of Contents for GoPass AVL-900

  • Page 1 2. Command 130 (set current time): SMS reports command sent to set the current time is not correct => The problem can be solved when you turn off & on AVL-900. It is because the Java clock and the module clock of Siemens TC65 GSM Module can be synchronized only when re-boot.
  • Page 2 Please check your set-up as follows: 1. USB to RS232 converting cable: It should be the one delivered with AVL-900. You can not use some other USB-RS232 cable, since the PIN number will be different from our specially made spec.
  • Page 3 IP->IMEI or PhoneNumber->IMEI mirror table should be the ideal solution. a). If track thru your web server, and messages sent back to server from AVL-900 is via GPRS, as IMEI is added to the protocol ($GPRMC + #IMEI...), you can get the IMEI w/o problem. You can add a program to your server for IMEI = user's name.
  • Page 4 If users do the tracking by their own PDA Phone, they can add Name to their contact list. When AVL-900 sends SMS message, the one who receives the SMS can read the Name & Phone# in the sender column in the PDA phone.

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