Unable to connect to mcu after upgrade

Basic Information:

Printer Model: Sovol SV01 PRO
MCU / Printerboard: Creality v4.2.2
Host / SBC RP Zero 2 W
klippy.log
klippy(1).log (134.1 KB)

Describe your issue:

I updated klipper to a new version and now after reflashing the board about 1000 times with the new firmware it just keeps giving me errors about “mcu ‘mcu’: Unable to connect” i tried checking the printer.cfg to see if it is the corect serial set, and it is , replaced about 5 usb cables but still to no effect. What could be causing such an issue with the board?

Likely one of the items mentioned in Issues flashing the printer board
Work thorough each and every point diligently