ROOT-ing a phone with a broken screen / adbkey.pub problems

Hello, so.. Before, my problem was about getting adb to work in recovery, which someone told me to install TWRP, that worked, and I got USB Debugging turned on.

Now, I seen that I need to root my phone, so I can push the adbkey.pub to data/misc/adb/adb_keys..
I tried pushing adbkeys.pub there already (without root, in recovery), and the phone still wants me to press ok, when the prompt of the RSA key pops up.

• Have TWRP, ADB works when phone is in Recovery..
• Phone not ROOT-ed. Which might be my problem..
• USB Debugging works
• adbkey.pub has been sent to data/misc/adb/adb_keys around 3 times
• Generated new adbkey.pub already..

The things I did:

adb shell mount /system
abd shell
echo "persist.service.adb.enable=1" >> default.prop
echo "persist.service.debuggable=1" >> default.prop
echo "persist.sys.usb.config=mtp,adb" >> default.prop
echo "persist.service.adb.enable=1" >> /system/build.prop
echo "persist.service.debuggable=1" >> /system/build.prop
echo "persist.sys.usb.config=mtp,adb" >> /system/build.prop
exit (Exited out of adb shell)
adb push adbkey.pub /data/misc/adb/adb_keys

I had copied adbkey.pub to the adb folder.

Again, like I said in my last thread, I don't care about losing data. Flashing stuff would not be a problem with me.

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