Bought my kemper from reverb.com "brand new" when i first turned it on it said nanoboot:burnFromUSB() and then says ERROR: no USB drive inserted
failed to upgrade firmware
Downloaded 7.4.1.1782 and and the plugged in the usb and then plugged in the Kemper stage, and a progress bar began to load, and then the screen displayed
nanoboot:burnFromUSB()
ERROR: fatal error parsing firmware file (errcode =-97)
I used two different usb sticks, both fat32, both with the file directly in the root.
also tried to go from 7.3.2 and also tried 1.8.2