Why Xhorse VVDI Prog 3.3v PIN is Missing?

One question about Xhorse vvdi prog: why is the 3.3v pin missing and the others are there when i look on the internet the 12v and 5v pin is absent and the 3.3v is there.


Xhorse chief engineer replied:

This does not affect the usage. The 3.3v pin is cut off when it leaves the factory, in the past, some customers accidentally short-circuited the power PIN, which will cause short circuit of the VVDI Pro device.


VVDI-PROG tech support: www.vvdishop.com