Installing stock ROM - at 65% get error assert failed: write_raw_image("/tmp/oemsbl2.img", "oemsbl2") Status(7), Installation Aborted
Yes, it works. It is just a read error, but the installation is complete. On Blade 2, I had the same issue. nandbackup from CWM didn't work - this is a stock rom flashed thru CWM, and it works :)

It is very likely a CWM issue.