Unistream Gets Stuck During Boot-Up

[Dave]

I had a client's USP-070-B10 / USC-P-B10 that was stuck "spinning" during boot-up. After some swapping of HMI, then CPU, I discovered that the SD card was corrupted. There was a folder created, named "System", and this folder was filled with 8GB (full capacity of the card) of "jibberish". Tech support told me that the system folder is only  created/used when the CPU reports a major event.  I, nor the client know of any event that might fit that description. I re-formatted the SD card, and everything worked fine, and has been for a few weeks now....and no "system" folder exists on the card.

Just thought I would throw this out there in case anybody else comes up against the same problem.