How to FIX ADB Device UNAUTHORIZED on Any Android Devices

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This video will show you how to fix unauthorized device error in adb on any Android devices.
1. Disconnect USB between PC and device.
2. Stop adb server by entering adb kill-server in command window.
3. On PC delete adbkey file in user directory, eg. .android
4. On device use Revoke USB debugging authorizations in Developer Options
5. Reconnect the device to the PC.
6. Check the box on the popup on the device.
7. Open a bash and enter adb devices
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Under USB Settings I had to change it from 'Transferring files / Android Auto' to 'USB tethering' and the key screen showed up.

danielmackey
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Impossible to see the end, these video images at the end cover the entire screen.

joaocarlosmonteiroprado
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What if my phone is lag/hang, the power button is broken, so i can't allow the usb debugging after connect to the laptop?

ateezsupporter
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Hello merci pour cette vidéo c'est top (désolé je met le commentaire en français, il suffira de faire une traduction). Pour les personnes ayant le soucis que j'ai pu avoir : c'est à dire : même en réalisant ces manipulations la pop'up n'apparaissait pas, il faut avant de rebrancher le téléphone décocher "USB Debugging" une fois branché cocher à nouveau "USB Debugging" pour moi la pop'up n'est apparue que comme cela (après 4 tentatives en laissant "USB debugging" coché aucune pop'up n'apparaissait et le téléphone était toujours "unauthorized") maintenant c'est ok et il apparait sur UE5 comme je le souhaitait. Merci beaucoup.

Pix_Thalia
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WTF???? The ads at the end of the video block most of the critical content. But

zkhmcknol
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I am trying to use adb remote shell in my mxq pro rockchip processor rk3228a box, it get connected but, whatever command we run, /sh:adb not found line appearers.
How to solve this ?

harshadpawar
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What if my screen is broken and i cannot enable usb debugging?

krashmans
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I don't have revoke option what to do now

vikashvishwakarma
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i had to change mine to usb tethering from Usb configuration RNDIS(USB Ethernet)

kpimcube
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Sadly didn't work for samsung a8 :(

verry_codes
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Didn't work for ROG Phone 5, Android 11

veeares
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thanks a lot man it's really work

princeskyvlog
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How do you fix this if you can't boot anymore?

pluto