WARNING 1: this is only tested for the 2GB version. It will probably brick the 4GB version. WARNING 2: performing an update from Android 5.1 to 6 will remove the root capabilities, so you'll have to redo the whole process.
Have been looking for a way to root my Lenovo Yoga Pro Tab3 10. Here's how I did it. Thanks to the guys from xda-developers !
- Backup all personal data from your LYTP3 to a safe host, as your device will be wiped and formatted completed;
- Format a 4GB SD card and insert it into the LYTP3;
- Download twrp-126.96.36.199(6)-x90-data-enabled.img.zip, and unzip it onto your computer.