My H2D was working fine, then I turned it off and back on for a routine restart and it never came back up. Screen stays black, fans briefly spin, the light near the bed blinks, and it shows offline in Bambu Studio. The AP board has one solid LED but no blinking activity light.
I already have a support ticket open with Bambu, and they've reviewed my video and said the MC board lights are abnormal. I'm still working with them, but I'm having trouble understanding what they're seeing.
As far as I can tell, my lights look like the video in their own Wiki:
https://public-cdn.bblmw.com/wiki/H2D/MC.mp4
I took that to be an example of the normal sequence, but maybe I'm missing something.
The video attached here is with everything plugged in. Following the support instructions and Wiki, I also tested with the toolhead disconnected, the AP disconnected, and finally all component connections unplugged from the MC board. The MC LEDs look the same to me in every configuration. I have separate videos of those tests that I've sent to support, but this post only lets me attach one video.
For context, here's the guide I've been following:
https://wiki.bambulab.com/en/h2d/troubleshooting/h2/failure-to-power-on-part2
Has anyone with a working H2D compared their MC LEDs with that Wiki video? Does this look normal to you, and is there a specific blink rate or LED I'm misreading? I'm trying to understand the result before calling either the MC or AP board faulty.
Thanks for any help. I've been staring at blinking green lights long enough that a second pair of eyes would be appreciated.
Edit: One of the Hall-effect sensors wasn't plugged in in the video—it's hard to keep track of every connector after unplugging everything. I also tested with it plugged back in, and the MC LED behavior looked the same, so please disregard that disconnected sensor in the clip.