X300M can do passat CC 03/2011 ,but can not work on chrysler PT

X300M is a kind of original OBDSTAR tool, it is the special tool for mileage correction for most of car models.

And now one of our customer told that X300M can test passat CC 03/2011 but can not test on Chrysler PT

Following is the pictures





Customer told that he want to change the original mileage 331293KM to the new 195826KM,but since the difference is too large, so he stopped changing the mileage.

When our engineer knows the issue and understand the process.

They told that if the difference is too large,it can not do it.