Android Orientation
Finally got it done.

First I sorted out the adb connection issue. I tried different combinations of USB ports in my computer until one eventually worked. 
Then I cleaned out all the "Set Orientation" apps.
Then I did the following.
adb pull /system/build.prop
vi build.prop
       save and exit
adb root
adb remount
adb push build.prop /system/build.prop
adb shell "setprop persist.demo.hdmirotation portrait"
adb reboot

[Image: Screen_Shot_2018_09_10_at_8_27_04_pm.png]
Great! Also, thanks for posting the solution.
You can find me on IRC, Discord and Twitter

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