ReachFar RF-V41 – discovered commands / looking for more commands

kokesuzuki 20 days ago

Hi,

I have a ReachFar RF-V41 4G and I am currently testing its command set through Traccar.

The interesting thing is that the RF-V41 appears to accept commands from the RF-V43 family. I have tested the following commands directly on my V41 and confirmed that they work:

Command Function Notes
UPLOAD,10 Set upload interval 10 seconds is the minimum stable value I have found. UPLOAD,5 causes the device to hang/crash.
UPLOAD,300 Set upload interval Sends the position approximately every 5 minutes.
CR Immediate positioning Sends the current position approximately every 20 seconds for about 2 minutes.
LED,0 / LED,1 LEDs on/off Controls the coloured LEDs used to locate the tracker.
POWEROFF Remote power-off Works, although there is probably little practical reason to use it.
REBOOT Reboot device Takes approximately 3–4 minutes to restart and reconnect.
MONITOR Silent monitoring The tracker calls the configured/default phone number.
FIND Audible finder Plays music for approximately 2 minutes to help locate the tracker.

I have also found references to commands such as GPRSGPS, LSN, WHERE and CONFIG on other ReachFar models, but I don't want to assume they are compatible with the V41. Some commands behave differently between models/firmware versions, and some can cause my V41 to hang or reboot.

The V41 reports the following firmware:

VR:C403H_RFHZ_V41_V1.5_2026.01.14_15.06.24
RV:C403H_RFHZ_V41_04R6_V1.6_2026.01.14_15.06.24
OS:RTOS
CHIP:3603

If anyone has a ReachFar RF-V41/V43/V44/V45/V46 command list, firmware documentation, AT command documentation, or has discovered additional commands through reverse engineering, I would be very interested.

In particular, I would like to know whether there is a command to configure continuous GPS tracking below 10 seconds, or whether 10 seconds is a firmware limitation on the V41.

Any additional commands that someone can confirm on these devices would be very useful.

Richard Creer 19 days ago

Does https://www.my-gps.org/63-GPS-tracker-SMS-configuration-commands-howto help?

Track-trace 19 days ago

Basicly you can lookup the commands from the Watch protocol document. https://www.traccar.org/protocols/

In devices that i checked it was the firmware that limited the update frequency.

kokesuzuki 17 days ago

@Richard Creer, I'm trying to set it up without sms

kokesuzuki 17 days ago

@Track-trace, yes I thought so, thanks for the confirmation