Originally Posted By: aksnowbiker
Indeed, reapplying an upgrade file did the trick.


I'd just like to point out that that wasn't cargo-cult debugging:

Code:
(undefined instruction vector)
means that the processor tried to execute some bogus code, which might simply be flash corruption.

Code:
let them speak now, or forever hold their peace...it seems not.
means that the protected flash is probably OK.

So: you might as well try to reflash with an upgrade file...
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-- roger