Just thought i would post here to help anyone with this issue, i had the same issue last week for the first time about memory corrupt. Anyway i tried for around 2 3 days to flash this with no fix it was doing my head in i tried on WIndows 32/64 bit on 3 4 diffrent machines.

The Emmc couldnt be flashed no matter what i did i kept getting

Waiting for Device etc etc.

So i decided to boot up Linux Ubuntu live cd, and bam flashed first go and everything was great.

So if anyone is having trouble flashing via windows trust me do it via Linux. Good Luck