Hi everyone, I made a mess and I can't fix it on my own.
Wanting to understand why the LEDs don't work and I think I burned the Control board (BIGTREETECH BTT Octopus V1.1) with a short circuit. In fact, from that moment the parts fan started to blow. After that I got this error (mcu 'mcu': Unable to connect). I disconnected everything and connected only via USB, and I tried to flash the control board again, but I couldn't connect with DFU and I suspected that I had burnt the control board, moreover, connected only with USB you can hear buzz and the belt motors tend to make very small jerks, which I think is evidence of having burned out the Control board with a short circuit. I bought a new one (BIGTREETECH BTT Octopus Pro V1.1) and without attaching anything I tried to connect again. Via DFU it recognizes it, which is already a step forward, it starts to flash but after a while it loses the connection, and the same problem reappears. In cnfigure? Step = 1 she says it is detected but not responding (Octopus Pro H723 V1.1 detected but is unresponsive.
Klipper doesn't seem to be running on your board, which may indicate faulty firmware or a faulty board. Please check your board and try flashing it again.)
I tried to flash with the SD card but the same thing happens again, it starts and freezes.
I tried with 2 different SD cards for the flash and with two different RatOS, including one without any configuration starting from 0
In the device panel it also recognizes it and is connected.
I've been stuck here for a few hours and I don't understand anything anymore.
Is it possible that the new MCU is faulty or what should I do to get the printer to print again.
I attach photos and log.
Thanks in advance
Have a good day