Hello @Sineos , thank you for posting this solution. I was wondering if you’d be able to help me solve this as I’m running into a similar issue. I’m trying to install a fresh copy of Klipper using the KIAUH script on a RPi4 + BTT SKR3 EZ board. Everything seems to run fine up until I flash the firmwa…

Please do not necropost. Moved it into a new thread. Your dmesg output shows nothing interesting so far. The MMU “error” can be disregarded IMO. Do the following: Turn on the printer. Disconnect the USB from the RPi to the board Re-connect the printer board to your RPi. Run sudo dmesg > dmesg.tx…

Hello @Sineos , apologies about that, thanks for replying though! Here are the results from the procedure you suggested: dmesg.txt (30.8 KB) Thanks again for the help, looking forward to your reply! Best

[ 76.468199] usb 1-1.2: USB disconnect, device number 3 [ 87.485909] usb 1-1.2: new full-speed USB device number 4 using xhci_hcd [ 87.597921] usb 1-1.2: New USB device found, idVendor=1d50, idProduct=614e, bcdDevice= 1.00 [ 87.597939] usb 1-1.2: New USB device strings: Mfr=1, Product=2, Ser…

Hmmm, it appears that the dev folder is missing from the klipper directory. I posted the output of running ls /dev/serial/by-id/* and listing the items in the klipper & home directories for your reference and the klippy.log file you requested. Hope this helps, thanks again for the help! [Screensho…

Hello @Sineos , thank you for getting back to me and apologies for the delay in the response. I’ve checked the procedure in the other thread that you shared and I didn’t want to proceed without checking in with you first. Running apt-cache policy udev returns the following: [Screenshot 2023-08-23 …

Amazing! After running the procedure highlighted on the other thread , it looks like it is now able to get the MCU serial id. [Screenshot 2023-08-23 at 2.09.32 PM] Thanks so much for all the help! :slight_smile:

SKR3 EZ - No MCU serial

General Discussion

Sineos August 17, 2023, 4:16pm 6

If you are running Debian Bullseye then check: Debian Bullseye Bug causing Klipper to no longer find the printer board

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SKR3 EZ - No MCU serial

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