MPPS V21 Software WORKED on MPPS V18 Hardware perfect

Definitely YES!

MPPS v21 software now can be used with MPPS cables with PCBs:

 

with the three versions of MPPS pcb, you can use v21 software for flash

if not, better not flash MPPS v21

MPPS V21 Software Download:

https://mega.nz/#!9CAFhTpD!NRtyud2wia9n7-XSOnxTCvtDf69re1oT7V2SlnioqyU 

MPPS V18 Software Download on Mega:

https://mega.nz/#!9Dpg3JwL!PFVR8bbMhC8HaDhBE075IP8iryOdbHDk3kkBNqmShiw

MPPS V18 Car List Download:

 http://www.fobdii.com/wholesale-457-mpps-main-tricore-multiboot-with-breakout-tricore-cable.html

MPPS V21 software + MPPS V21 hardware: 100% working

http://www.fobdii.com/wholesale-457-mpps-main-tricore-multiboot-with-breakout-tricore-cable.html

  

The newest MPPS v21 PCB comeswith better protection components (imported, not made by Chinese),  improved a lot according to the issues of mpps cable from customers feedback

Hope it helps.