After I flashed the klipper.bin file I am able to find the serial connection to the board. using “ls /dev/serial/by-id”. But after power cycling the Spider board (and remove BT0/3.3V jumper). I am not able to acces the Spider board anymore.
See below the terminal window where you can see at the end (after power cycling the spider board), it can not acces the serial/by-id directory.
If it was the SD card, did you remember to change “klipper.bin” to “firmware.bin”? I mess that up in some way about 50% of the time when I’m doing an SD Card update.
Flashing is not done via UART indeed. What i mean is, as you can see in my added picture I was able to flash the firmware to the board. The problem I have is that after power cycling the Spider board I can not acces the board anymore. There are 2 ways of connecting to the spider board. it is via USB or via UART (GPIO14 & GPIO15 of the raspberry pi).
Sorry my fault. Yes, I did remember to do that. And after doing that and powering the board up again, I am not able to acces the board via USB. I have tryed this more then 5 times.
I loaded the latest bootloader to the board and repeated the actions from the guide. That seemed to solve my issues, it totaly works now! Thanks a lot!