Quote Originally Posted by astgtciv View Post
..

Same white screen.

Then reflashed back to R4CB020. No change, same white screen.

Anything else that I could try here? Thanks!!!
If you have GDFS backup (before when your phone work fine) now can make GDFS restore.
You can NOT use GDFS backup from another phone - this will kill your phone!!!
If you haven't GDFS backup -> go to a service centre.