That doesn't sound good. I would think that would indicate the flash is either corrupt or not working at all.
That vendor/device pair looks bogus. My flasher doesn't bother to validate those values, could you try the program in the original firmware?I want to upgrade to 1.7 so I have to use the flasher.prg as I have no menus of any kind.
When I run flasher.prg I see
**** SYSTEM FLASH ****
LOAD_FILE
<FE3FIRMWARE>
CURRENT VERSION: ????
NEW VERSION: 1.7N
VENDOR:20 DEVICE:20
ERASING ... OK
BLANK CHECK ... FAIL
https://ops.github.io/FE3-Firmware/
If the device went from working ok to not I would suspect a hardware cause. Check all chips are seated in their sockets and check the board over carefully for damage to traces, dry joints etc.Any ideas on how to update and get this working again?
Edit: try running the fe3diag program in the original firmware zipfile.