This apk will root Z9S/Z10/X20/X20 Pro/Z1000 with Android 7.1 firmware 2.2.65 or later:
https://www.mediafire.com/file/dk0gaxhx7amsfk4/OnekeyRoot_Android_7.1_v1.1.5.apk/file
After root the box firmware cannot be updated in the normal way and the user takes all responsibility for any problems. The warranty is voided.
I've just tested it on an X20 Pro running firmware 2.2.96 and it works.
To get a regular non-root system back do the emergency flash procedure ('HOW TO FLASH..') as here: https://www.zidoo.tv/Support/support_article/support_target/knZnnclmVcI%3D.html