Wraith 32 BL-Heli suite issue

[Coyote]

Hi guys

I have 4 Wraith 32 ESC's on my quad and when connecting to BL-Heli Suite ESC 1 and 2 are present and correct and will flash fine.

ESC 3 shows : erased or unknown firmware, BLHeli Bootloader h

ESC 4 shows : ---

In betaflight if I go to the motor tab I can control both ESC 3 and 4 so they are working, does anyone know a way to fix the issue ?

[ched]

Only a guess but do the 32bit BLHeli esc need a different suite to the 16bit ones?

[Coyote]

Yes it does, but that's the suite I'm using.


Managed at one point to flash ESC 3 and 4. Set all the LEDs to red so I could tell if they stored the flash, after a few power cycles 3 and 4 went back to bright white again and won't flash :(

[ched]

I know it may sound silly but could you temp swap 1&2 signal lines with 3&4 and see if that makes a difference? Other than that any way you can use a flashing tool (usbasp) and try flashing the old fashioned way?

[Coyote]

A good suggestion swapping the inputs to see if the fail follows the esc or not.

[Coyote]

Hmm, on pulling apart the PDB / FC I found a slight discolouration in the ribbon cable linking the two boards. Luckily I have a spare so swapped it out, now the ESC both flashed, so I will when I get in tonight give them a soak test but it looks like a faulty cable was the cause so far.

[ched]

Hmm, on pulling apart the PDB / FC I found a slight discolouration in the ribbon cable linking the two boards. Luckily I have a spare so swapped it out, now the ESC both flashed, so I will when I get in tonight give them a soak test but it looks like a faulty cable was the cause so far.

That's great news. Well spotted. It won't be long till it's in the air now.

[Coyote]

Thanks, still alive and showing no problems so looks like the ribbon was the cause. So glad I didn't have to desolder and send them back :)