This is for anyone whose got white screen after changing Display (display ok).
1st Step : Read Flash file from spiderman.
2nd Step : Flash with another flash file with different CPU (if the phone has MTK6225, flash it with MTK6223 or other CPU flash file)
3rd Step : Now flash it back to the original flash file (flash file from the 1st step).
I hope this works for everyone. I got it work with G' Five U808.