ADB root failure on the rk3399pro!

[2050airobert]

Hi，
I could not get the root permission of the rk3399pro, is there any wrong with my operation?

PS C:\data_20220701> adb root
root access is disabled by system setting - enable in settings -> development options
Then I open the usb debug mode and all the option need for my root permission, and still with the error above!
If I could not get the root permission, I could not do more things that I want as following.

 Could you please help me with this problem, any idea?

BR