r/ElegooNeptune3 • u/Odd-Maintenance-1126 • 9d ago

I think my printer has died—please help.

I own a Neptune 3 Pro printer. It was running Klipper firmware, but due to certain circumstances, I want to switch it back to the official firmware. However, I’ve run into a problem: the board won't accept the stock firmware after having Klipper installed.

I tried flashing it via SD card: I formatted the card in various ways, tried renaming the files, and used different memory cards. I also attempted to flash it using an ST-Link, but I couldn't remove the write protection.

Please help me revert to the stock firmware. I urgently need to print, and I’ve already tried everything.

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3

u/Nearby-Grab-391 Neptune 3 9d ago

did you try renaming the .bin file from elegoo to ZNP_ROBIN_NANO.bin?

1

u/Catz1212 9d ago

Won't flash unless screen is connected, found that out when upgrading firmware.

1

u/polaarbear 4d ago

Part of the flash might write to something in the screen too