JeffDenver
Member
The one from May 7th will delete data on internal memory, but not your SD card. That was my experience. Also, you cannot be rooted and your phone must be locked...if you unlocked it you have to go back and re-lock it. I also think you need to have the stock ROM (bloatware intact).
Otherwise treat it like an official install. The links all have instructions as well.
Otherwise treat it like an official install. The links all have instructions as well.