[JasonACT]

The faulty FDIM that I obtained had a bad USB transceiver chip (the chip that takes serial data and turns it into byte data for the main CPU). I don't know why it was broken, there is lots of protection around this area - so it's not like the guys kids stuck some metal in the socket and it broke - that shouldn't be possible. I don't even know that the jump-start broke it (I should ask him if he ever used it).

The flash chip is only rated for 10 years data retention, that's probably with the error correction too (which allows 4 bits per page before you notice a problem). I reckon the data had been gone for a while, and the jumpstart just caused a reboot when meant loading the data again for the first time in years. So all of a sudden we think "Oh, the jump start broke it."

But, yes, I think in most cases, the hardware is fine and it just needs some files copied back to fix it.