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Heltec v3 now in a power cycle loop (midwest.social)

submitted 1 month ago by [email protected] to c/[email protected]

9 comments fedilink hide all child comments

Just got a new case for my v3 and now all it is doing is going through a power cycle loop showing the splash screen and nothing more. Pulled the battery and tried only USB power but same result.

Has anyone seen this issue? Running the current beta firmware and it was working fine for a few weeks so i doubt it's a SW issue.

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[–] [email protected] 3 points 1 month ago (1 children)

Thinking maybe that is it. So I removed the buttons (its a 3d printed case with the two buttons connected together. Still see the issue.

So then I tried plugging in the battery while the board was out of the case. Booted just fine. While staying plugged in and with the buttons removed I pushed the board back into the case and all good...until I hit the reset button and now it is back in a power cycle loop. This is so weird.

[–] [email protected] 1 points 1 month ago* (last edited 1 month ago) (1 children)

Not sure what case design you're using, but what worked for me was taking a knife and enlarging the button holes slightly (that was easier than sanding down the buttons).

On later prints, I had success scaling the case to 101% and scaling the buttons down to 98% in my slicer.

[–] [email protected] 3 points 1 month ago

I removed the buttons completely and was still having issues so it isn't the reset button being pressed that is the problem.

I think it might be that the case is carbon fiber infused which can be conductive and maybe its actually grounding something.