I've reflashed the firmware on my device more than a few times in the past few months, from my Linix desktop machine. I've never had a problem. Reflashed to the US version of PR1.2, again no problem. Attempted to reflash the eMMC with the latest file and got a size mismatch error. Re-downloaded the file and got a file with a different byte size the second time. That one worked fine. I wonder if the other folks reporting eMMC problems are hitting the same issue. Maybe there was something weird with the site or the source file for a small window of time. Just speculation. I'd advise trying to download the file again.