Why you need rework the PCB ofMPPS V18 china clone?

Because there are two versions of Mpps china clone. One comes with missing componentsand different resistors are installed with red marks below：

Working mpps v18 clone should be like this:

Available inhttp://www.obdexpress.co.uk/wholesale/mpps-v18-main-tricore-multiboot-breakout-tricore-cable.html

So, some cheap MPPS china need rework.

For the mpps above:

D1 = PESD1CAN ESD protection

U4 = PRTR5V0U2X

Zoom on it and see what’s missing.

this schematic if it also helps

In summary, not all china good! and you get what you paid for.

Good luck with china clones.

Source:http://www.obdexpress.co.uk/service/mpps-v18-technical-service-18531.html