[Q] ADB Device Unauthorized - No Solutions Provided Worked - Android Q&A, Help & Troubleshooting

Hello fellow xda-members,
my ADB isn't working anymore. I own an LG G4 H815 Intl and a windows 10 computer. When I bought the G4 and rooted it ADB worked without a hassle.
Now, 6 months later, ADB is gone. I tried
Code:
adb kill-server
Code:
adb start-server
and replugged the cable
Installed latest LG Drivers
Reboot phone and PC
copied adb_key.pub to the phone (/data/misc/adb)
erased .android. folder on PC (/C://User/me/.android.)
None of that worked for me and I feel like the internet offers no more solutions for my problem. Been on, like, 20 pages.
So if anybody of you faces the same problems - please help :crying:

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Gear s not showing up in adb devices on windows 10

hi everyone
i have been trying to fix an issue for days with my gear s1 sm-r750a (software r750aucu2apc1) not show up in the cmd adb devices so this is what ive try that has not worked:
reinstalled my samsung and google drivers multiple times
factory reset
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unpaired and paired with a samsung phone
turned on usb debuging on my gear
updating my gear s firmware
updating drivers manually in device manager
15 seconds adb installer
googling it and youtube videos
adb kill-server
adb start-server
adb devices
recovery mode
android sdk software
eclipse software
disable digitally signed driver
updated to the lastest java
restarted my pc multiple times
tried mobilego by wondershare
impactor
odin
vroot
samsung kies
smartswitch pc
naked adb drivers 0.73
universal adb drivers
simple adb installer
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