Alesis Ion - not booting - corrupt flash?

Hello,
I acquired an Alesis Ion for parts. Voltages and clocks on main board are OK but the screen gives this message:
“I’m sorry. I seem to have experienced an internal error. Please reboot. If this problem persists please contact Alesis technical support” Power cycle or pressing reset button on main board does not resolve.

Is this likely from a failed firmware upgrade? Would anyone at Alesis (In Music) support be able to help? Or have they ceased support for older synths (circa 2003)?

If I bought an aftermarket ColdFire debugger (BDM connector), I could trace the code and see where it gets hung up. But without a new code image, I doubt I can recover from corrupted flash. Anyone seen this issue?