Well, now that you (that is, everybody) have it rooted probably the first thing you want to do is to fix those buttons!
The file that you care about is /system/usr/keylayout/Vendor_0001_Product_0001.kl That has the nonsense about F9-12 in it. Now, you can go in and just overwrite that file. You might never have a problem with that, but the Magisk way is to build a module. It's not that difficult, mostly a bit of boiler plate. Full instructions are found here:
https://topjohnwu.github.io/Magisk/guides.html
So the file contents are your choice. Here's mine because I regard back and app switch as two of the most useful things in Android.
Code:
key 116 POWER
key 102 HOME
key 191 APP_SWITCH # top left
key 192 PAGE_UP # top right
key 193 BACK # bottom left
key 194 PAGE_DOWN # bottom right
OMG, is that app switcher UGLY! Want to see how ugly it is without doing the mod above? Just do:
Code:
C:\>adb shell input keyevent 187
I finally got my version up to 8.1.1.110. I did it the hard way.