Ok, try this...
Put the unit into dfu mode (hold in jog SW and turn on with usb cable connected) and see if the computer sees it's in dfu.?
On the H4, the LCD is dark during dfu mode.?If the PC recognizes it in dfu mode, push in new fw.?
On Sat., 19 Feb. 2022 at 3:41 p.m., Brady Nelson<tbradynelson@...> wrote: My board says v4.2.1. Unfortunately I don't have an oscilloscope right now to check the xtals.
