DSMR issues - Spektrum surface receiver SR6200A

[IdefixRC]

Hello there,

I came across an interesting issue with my MT12 and a Spektrum surface receiver (SR6200A).

I have 2x MT12 and 2x Arrma Vorteks Cars with SR6200A receivers.
One radio (EdgeTX v2.10.5 with MM v1.3.4.0) connected using the R1-F mode (DSM2SFC - 6 is missing from the FW build as listed here) after a few tries and works although Telemetry comes and goes all the time.

The 2nd MT12 (same SW version as the other) and Vorteks connect when binding. Telemetry comes up, drops and never comes back up again and when I cycle the power on the receiver, the receiver goes back into binding mode directly when powered back on.

In addition the issue that only receiver number [00] can be used remains also in 1.3.4.0 - see video of the issue from another user here: https://www.youtube.com/watch?v=KLTIEe_VTGY

Any help would be highly appreciated ! Thanks a lot

[IdefixRC]

Update to my earlier post: I tried different versions of the MM FW and got it to bind with version 1.3.3.14 of the Multi Module FW, higher versions all ad the same issue of connecting but not keeping the bind after a receiver power cycle.

It even works now if I select the [01] receiver number which with the other FW versions resulted in no connection at all.
Maybe this helps to troubleshoot.
Thanks

[pascallanger]

I don't have any DSMR receiver to test... Can you narrow down the exact version from which the issue started?
Like:

• Version x.x.x.x works
• Version x.x.x.x broken
  From there I might be able to find out what happened