I own a Sermoon D1 and have now grown a BLTouch. After downloading the firmware V1.0.9-SC-V1.1.15, I formatted an SD card as shown in your video and installed the firmware on it. But the printer does not install the firmware. Only one file
EEprom.dat is written to the SD card. Several attempts with other SD cards were also unsuccessful. the current firmware is V1.1.10. I hope you can help me.
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Sermoon D1 no Firmware update possible