Reflashed klipper (ender v3 se) and now getting mcu error

[hcet14]

@wewu

As for baud rate, this is a setting specific to this ender board. I ran into this problem when I set up klipper initially and changing it from 250000 to 115200 fixed the issue entirely. For sake of argument, I just tried it at 250000 again and returned the same result.

@huhen uses #baud: 500000 and the same printerboard.
I would give it a try…

huhen/Ender3_V3_SE_for_klipper/blob/main/printer.cfg