3300 MX controller not booting (boot loop)

[regexaurus]

I'm mucking about with a 3300 MX controller, trying to get it to boot. All alarm LEDs are blinking red. Connecting to the maintenance port, I see these critical/fatal errors:

Loading /partition1/Rtc8260...usrFdiskPartLib error: Sector 50016456 contains an invalid MSDOS partition signature 0x55aa.
useFdiskPartParse error
0xf313670 (tBootn/a): dosFsLib.c : ERROR reading the device boot sector

Error loading file0x: errno = 0xf313670c0006 (tBoot): dosFsLib.c : media not formatted or not present.
Can't load boot file!!

See the attached file for a transcript of everything I see on the maintenance port. This repeats ad infinitum. Any suggestions to fix?

[acejavelin]

Drive is shot, or at the very least boot sector is bad... Don't take a chance... replace the drive, reinstall the software, and restore the most recent backup you have.

If you can't/won't replace the drive, then at the very least you will need to do a manual system reinstall of the software and restore from a backup, but honestly every time I have seen this the drive needs to be replaced.