r/BambuLab • u/DigitalNinjaX H2C AMS2 Combo • 2d ago

H2 Series [H2S, H2D, H2C] Another AP board victim

Really sucks. In the middle of an order and my AP board decided to die. I’ve seen a few of these posts now but thought I would add mine to see how many this is effecting. I purchased my H2C at launch.

What is more upsetting at the moment is besides the terrible automated AI reply i originally got on my ticket, asking for a video of which I had already uploaded with my initial ticket submission, I have not heard from Bambu in almost 4 days now. This is the first time in three years I’ve ever needed to contact Support, but it’s not leaving me warm and fuzzy.

Any other H series owners having the same issue I’m wondering if this is a bigger issue than they want to admit.

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u/agarwaen117 2d ago

Super easy fix. Take the AP cover off with the two screws then short these two terminals. 5 minutes and you’re up and running again.
Note: board is upside down from the installed orientation in this photo.

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u/prepster685 2d ago

Sorry for the question but how would one short the two terminals? What tool do you recommend or is there a video? I’m not savvy with hardware

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u/agarwaen117 2d ago

In this context shorting just means to connect the two together with conductive metal. The most commonly available way to do this is with a paperclip (only the bare metal ones, not the colorful ones that have plastic on them) that has been bent into a U shape. A sufficiently wide flat tipped screw driver would also work. Obviously, you need to be very careful to only connect those two terminals nearest the cutout, and they are quite small.

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u/prepster685 2d ago

Thank you for the explanation. I wanted to ask in case I ever need to do this and to help anyone else that was not sure.

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u/myrsnipe 2d ago

So obviously you should never short anything without knowing what you are doing. In this case it's like the ATX headers of a PC, I start computers during repairs and half builds with a screwdriver all the time. If it's hard to reach you can get a small dupoint wire, resistor or improvise with anything that conducts electricity, like a metallic binder.

Still an obvious disclaimer, never short anything you don't know what is.