![]() I power up the first time from the USB-C and the board was Ok. Initeresting, I got the same issue on my Octopus v1.1. I'd suggest starting with a different small as card (they get crupted pretty easily). I inserted the card and pressed the reset button. I've had issues in the past with larger cards. I used an 16gb SD fat32 format with firmware.bin in the root directory with nothing else on it. Riprap need an updated bootloader and I'm not sure about klipper. Btt recommends updating firmware via the SD card instead of via the stm software because it's fairly complicated. There is already be a bootloader pre installed. With regards to the bootloader it is my understanding that the stm software is to update the bootloader not load the bootloader. I'm not sure what of this combination worked for me but it was a little touchy getting it to connect to the pc via the bootloader software. Had the software running when I reconnected the board. Installed the jumpers and used an actual USB 3.0 cable. Took the board completely out of the printer. On a windows computer I went under device manager and deleted all of the com ports. ![]() It took a little persuasion to get mine to connect.
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