For those who are interested, I had removed my digitizer. I hope that I did not damage any wire or my camera.
Image was taken with my phone so it will be blurry.
After removing the back cover, unscrew 6 screw, circled in red.
Mate 10 alp-l29 c636
Updated to 126.96.36.199 yesterday.
Well if you want to root you can try this, provided you don't mind installing Chinese software.
I got mine rooted this way.
First you need to install 2 programs 完美ROOT and ROOT大师. I am not sure if there is any english version of the app.