Communication problem between Sinotrack ST-901M and the traccar server

Hello dear community,

I'm currently working on a truck tracking project. I have trackers, some of which are Teltonika and others are Sinotrack ST-901M.
I have no problems with the Teltonika GPS devices. They communicate well with my server on port 5027.
However, I'm having problems with the Sinotrack GPS devices. When I configure them on port 5013, I don't capture any frames. The same goes for Port 5023.
I tried configuring it to port 5027. I receive the following frames:

*HQ,9175331610,V1,120340,A,0618.2771,N,00113.1093,E,0.00,14,200525,fffffbff,615,03,64,16179#

However, since this format isn't recognized on this port, nothing is reported on the traccar GUI.

I've tried setting the ports back to 5013 or 5023 several times, but still nothing, and I'm not capturing anything in the logs.

I should point out that ports 5013 and 5023 are open on my server. There are units and internet on the SIM card because I get a result when querying the GPS via SMS with the RCONF command.

Result of the RCONF command

ST-901M, ID: 9175331610, UP: 0000, U1:, U2:, U3:, MODE: GPRS, POWER ALARM: ON, ACCSMS: OFF, ACCCALL: OFF, GEO: OFF, OVER SPEED: OFF, VOICE: ON, SHAKE: OFF, SLEEPMODE: OFF, APN: moov, moov, moov, IP: IPDEMONSERVEUR: 5013, UPLOAD TIME: 20,300, TIME ZONE: +0

Can you help me resolve this issue?

When I configure them on port 5013, I don't capture any frames

Sounds like a device issue to me.

Have you found a solution to your problem?

Are you asking yourself?