My printer refuses to connect

General Discussion
1

Basic Information:

Printer Model: Ender 3
MCU / Printerboard:Silent 4.2.7
Host / SBC:Dont know what this means?
klippy(6).log (18.6 KB)

klippy.log

Fill out above information and in all cases attach your klippy.log file (use zip to compress it, if too big). Pasting your printer.cfg is not needed
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Describe your issue:

… My printer refuses to connect no matter what, i tried building the firmware a couple of times but with no luck. Just says: “mcu ‘mcu’: Unable to connect
Once the underlying issue is corrected, use the
“FIRMWARE_RESTART” command to reset the firmware, reload the
config, and restart the host software.
Error configuring printer”. The printer does connect as a serial port to my pc. Any ideas?

2

Hello @Zynthrodak !

Have you tried different USB cables?

Where is Klipper running on (SBC: Single Board Computer)

4

I’ve tried 2 cables, im running klipper on some old laptop on linux mint. The laptop detects the printer as a device

5

How did you get Klipper on the laptop?

6
7

Was Kiauh able to flash the MCU via SD card??

8

Yep, i got the file, put it on my sd and plugged it in and waited. But the serial output looks wonky? I tried every baud rate and it still looks like random characters

9

There are quite a few potential contributors to this problem. See Issues flashing the printer board

10

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