Trouble flashing mks monster8 v2

Basic Information:

Printer Model:
MCU / Printerboard: mks monster8 v2
Host / SBC
klippy.log

Describe your issue:

I’m down to just a mks monster 8 v2 to run the extruders on my custom build until another creality board comes in. It came with marlin pre installed so I followed mks’ github to flash klipper onto it. It didn’t work via the sd card but it seemed to via the usb A port, but afterward it didn’t show up under ls. Currently I can only get it to show via setting it to dfu mode but Kiauh can’t flash it via either make flash method.

I’m running out of options here, I’ve tried the stuff they provide to get firmware onto it in DFU mode but that didn’t work.