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verified publisher icon bigtreetech

unknown command m420.. When trying to home.

Open pnelson29 opened this issue 2 years ago • 8 comments

I am not able to get my machine to home. it throws an Unknown Command M420. All I can find is about bed leveling.. I have that disabled as I don't have any bed leveling hardware To add to this.. This is a new board install. Only flashed with Marlin. Using a FTF35 display.. No Klipper or PC connected. Just trying to get initial set up going

pnelson29 avatar Apr 16 '23 15:04 pnelson29

Hi pnelson29. I am having the same issue with my SKR Mini E3 V3.0 board. Were you able to find the root cause and resolve the issue?

dgknow avatar May 04 '23 12:05 dgknow

No, I still get it every time I home any axis.

pnelson29 avatar May 04 '23 13:05 pnelson29

I found this previous thread; https://github.com/bigtreetech/BIGTREETECH-TouchScreenFirmware/issues/2747

It looks like an issue with the TFT35 display firmware. I'm now looking for a different firmware to install on my display. I'll let you know when I find a firmware that works.

I hope this is helpful.

dgknow avatar May 04 '23 16:05 dgknow

Same problem here. I'm working on it.

fjbold1 avatar Aug 10 '23 14:08 fjbold1

It has been solved with a new update from bigtreetech, dated 8/10/2023.

fjbold1 avatar Aug 10 '23 23:08 fjbold1

Thanks fjbold1! I'll try it out when I get time.

dgknow avatar Aug 15 '23 00:08 dgknow

What update did you find? And how did you apply it? Sorry noob here

pnelson29 avatar Aug 16 '23 14:08 pnelson29

search github for Bigtreetech tft touchscreen firmware, you can download the zip fie, it covers all models. BIGTREETECH-TouchScreenFirmware-master (1).zip"

fjbold1 avatar Aug 18 '23 22:08 fjbold1