kula i did the RCONF command, it didnt reply with ID number
it replied ID:00000000
what should i do.
please help
Sino track Reset
kuta 
this is the reply from the unit. kindly help
DennisBarber Hello,
It looks like, there is an issue with the device.
Most likely, in this case, you will need to flash the device or there is a command that can be used to set the tracker ID.
In this case, unfortunately, we can’t help you. It’s better to contact manufacturer or dealer directly.
Only they can provide with more information.
20 days later
Good day
I bought 3 vehicle trackers and they keep going offline. What could be the problem?
I place 1 into the vehicle OPD port and it was offline when I place the simcard.
The 2nd 1 went online then after 4hours it goes offline and won’t go online.
Please help
It will keep scanning and stay offline
6 days later
For questions regarding the operation and configuration of the tracker, we recommend contacting its manufacturer or seller directly. They are the ones who have the competence on this issue.
At the moment our system is working correctly.
Please write to us at support@gps-trace.com with the login, unit ID, screenshot of device configuration (SMS commands and device’s answers) and link to this topic, then we will try to check additionally and help you.
20 days later
Hi, my tracker wont drop the call or send location by SMS when i call the sim on the device but it responds to sms commands just fine.
Dear OLUWATOBIOLUFEMI
Here we discuss an applications for personal GPS tracking Forguard, Ruhavik and Petovik.
In case you are not using our application, you need to contact the tracker manufacturer or the developer of the application you are using directly for help.
In case you want to use our applications for monitoring your vehicle, you need to create an account in our system. Please note that our application is free when used to monitor a single vehicle. For more information on how to get started with our applications, please visit https://gps-trace.com/en/how-to-start
If you have account please write to us at support@gps-trace.com with the login, unit ID, and link to this topic, then we will try to check additionally and help you.
5 months later
9 days later
kula please guide me on how to hardware reset my sinotrack st 906l as imei i registered on it was blocked by my country and now sms commands are not working.
Dear SzamenKazmi
Thank you for reaching out to us.
According to the device manual, you can try using the RESTART SMS command to restart the tracker.
https://content.gps-trace.com/assets/47a3fb10-431b-47e5-9cd1-01d3b2bd3fee
It is best to contact the device manufacturer or dealer for the tracker settings, as they are better versed in their product and its features.
8 days later
Hello i recently purchased st 905L 4G3, the sms works just fine but the GPS blue led keeps blinking and wont show me accurate map position on sinotrackapp. Hope someone could help me here
The blue light is flashing. The yellow light is on. Displays the position of the last use in another city. Other devices show that the GPS signal is excellent. There are more than 20 satellites visible. The RESET command did not help. How do I make this device work?
Sokolov
According to the instructions, the blinking blue signal indicates problems with the GPS signal.
To resolve issue you need to do the followings:
1 Check the tracker’s location:
Ensure the tracker is not in areas with strong GPS interference, such as underground parking, tunnels, or dense forests. It should have a clear view of the sky.
2 Check the GPS antenna:
If your tracker has an external GPS antenna, make sure it’s properly connected and undamaged. Internal antennas should not be obstructed by metal objects.
3 Restart the tracker:
Turn off the tracker, wait a few minutes, then turn it back on to restore GPS connection.
4 Check the tracker settings:
Ensure it’s configured correctly for GPS. A factory reset may help resolve issues. You can also send a reset command if available.
5 Move the tracker:
Temporarily relocate the tracker to a better area for GPS signal and see if it improves.
6 Check the SIM card (if used):
Sometimes SIM card issues can interfere with GPS data reception.
Following these steps helps in most cases.
a month later
Helo, can someone help me with my sinotrak.Link off and The yellow lights keep blinking even with signal in the area
How can i change the ip address ang the apn when the it wont receive links or ip address maybe because it the sim filter it.
Dear JustineDaveArado
We have given you the answer in the email. In your case, we recommend changing the IP and port using the SMS command for Sinotrack.
9 days later
The command 669+Password is not working on my ST915. Can you help me? 
5 days later
ArvinElemia
According to your tracker’s manual, you are trying to send a request to determine the tracker’s location.
If the tracker does not respond to the location request command via SMS, but responds to other commands, the possible reasons may be the following:
Incorrect command format - Make sure the command is sent in the correct format supported by the tracker.
Network restrictions - Sometimes operators may block certain types of SMS or commands. Check the terms of the operator.
Tracker settings - The tracker may have the function of sending coordinates on request disabled or require additional settings.
Request limit exceeded - Some trackers have restrictions on the frequency of sending data on request.
Check these factors and, if the problem persists, consult the device documentation or contact the tracker supplier.
4 months later
Hello, 
have a Synotrack ST903 GPS and I am having a problem with activating the microphone. After consulting the documentation, I could not find the SMS command to activate the remote listening function (voice:on)/(voice:off)