Unable to flash/connect to Klipper with Creality 3 S1 / cr4ns200141c13 / STM32F401

[jagrbombs]

Basic Information:

Printer Model: Ender 3 S1
MCU / Printerboard: Ender 3 S1 with cr4ns200141c13 / STM32F401
klippy.log : jagrklipper.log (463.9 KB)

Describe your issue:

Hi there,

Trying to flash Klipper on my Ender 3 S1 I purchased in Sept 2023, seems fine with latest firmware on Creality’s website, but can’t flash or can’t connect to MailsailOS / Moonraker, I seem to be able to connect to the printer and can get the by-id

Anything I should do, getting this error in MailSail

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

Thanks in advance for any help!

[Sineos]

Looks like your board is not properly flashed.
Closely follow the information on top of klipper/config/printer-creality-ender5-s1-2023.cfg at master · Klipper3d/klipper · GitHub and repeat the process.

[jagrbombs]

#
# printer_size: 220x220x280
# To use this config, during "make menuconfig" select the STM32F401
# with a "64KiB bootloader" and serial (on USART1 PA10/PA9)
# communication.
#
# Flash this firmware by creating a directory named "STM32F4_UPDATE"
# on an SD card, copying the "out/klipper.bin" to it and then turn
# on the printer with the card inserted. The firmware filename must
# end in ".bin" and must not match the last filename that was flashed.
#
# See docs/Config_Reference.md for a description of parameters.

I’m guessing I didn’t change the last firmware name, since I had created the firmware.bin (saw somewhere else to rename it) using these settings which should match above

Going to retry with it renamed firmware01281414.bin

Thanks for the reply and help!