M8P V2, with CB1, TFT70 V3. after installing the screen, printer wont connect, now it gives me klipper cant connect, cant find mcu. I tied re-installing, but I think I need to do a full re-install and wipe whats there. Can’t find anything to tell me how to erase board so I can start over.
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How about attaching the klippy.log as requested by the template your deleted with creating your post?
Maybe you just have misconfigured the setup.
How is the screen connected to the board?
after installing the TFT70 V3, I restarted the board and the screen said MCU error, can’t connect printer not ready. I could not get to anything that worked. I reinstalled everything as I did when I got the board. The firmware install does no turn to firmware.cur. and when it starts it say klipper encountered an error, klippy can’t connect. I can’t get to the console or do anything. Running the(ls /dev/serial/by-id/) command results in “no such file or directory exist”
I just need to know how to make this work again
klippy.log (391.5 KB)
See Issues flashing the printer board
Either the board not correctly flashed or some issues between board and host.
I am a novice at programming 3d printers. I have followed the directions from the bigtreetech website ad confirmed with youtube videos. Although some of the instructions are vague and assume the person reading is a programmer, I was able to do it the first time and it was working. After installing the TFT70 V3 screen, everything went wrong and it could no longer find the MCU. All commands to find it say directory or file not found, invalid command. I have now re installed everything the way I originally did, but I keep getting the same messages.
Maybe your attempts with the display caused some damage, like a short or similar. Although it would be strange.
In any case:
ls /dev/serial/by-id/* command, then try reflashing the bootloader according to Manta-M8P/V2.0/Firmware at master · bigtreetech/Manta-M8P · GitHubThere is not much more that we can do from remote. In the end it might be a dead board.
I do not know how to reverse the tft0 install. I was looking to find a way to reset the board and start from scratch at this point. I have re installed all the components several times now. I have used conflicting procedures from Bigtree, several youtube videos and the written instructions that came with the board.
if u disconnect the screen does it work ?
bboard no longer turns on at all. Started with uart pin error, progressed to can’t find MCU, then you couldnt flash the board, to nothing works at all.
Try this. This helped me get my M8P + CB1 running. The site is in German so just have to have your browser translate. Dr.Klipper
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