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Joined 1 year ago
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Cake day: July 9th, 2023

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  • I’ll do that. Should I be using the “Ender-3 4.2.2 mainboard (32bit)” firmware? I’ve read that the Marlin firmware isn’t compatible with the GD CPUs, so I’m assuming the “Ender-3Marlin2.0.6HW4.2.2GD” won’t work.

    Update: support got back to me, with instructions to reflash using the latter firmware. The symptoms changed: during the firmware “upgrade”, the 05 LED flashes about once a second. I let it run for ten minutes, but the printer never rebooted. Powered it off, removed the SD card, powered it back on… Still nothing but a blue display, though the 05 LED keeps blinking once a second.

    I’m thinking it’s a bad motherboard. Waiting on support, now.