VVDI Prog Cannot Erase and Write Ford BCM R5F64524?

Q: I have a problem with Xhorse VVDI Prog and reading R5F64524 Ford BCM cpu. I can only read it, but I cannot write and erase.  I dropped it from the board and I also cannot erase and write it.  And in the menu I choose as expected Vvdi prog.

Vvdi Prog R5F64524 Ford BCM 1 Vvdi Prog R5F64524 Ford BCM 2 Vvdi Prog R5F64524 Ford BCM 3 Vvdi Prog R5F64524 Ford BCM 4 Vvdi Prog R5F64524 Ford BCM 5

Solution:

VVDIProg can only read this ECU, does not erase nor write it.