Android Studio - ADB Error - device unauthorized Please check the confirmation dialog on your device

Question

So I started getting errors in my ADB logs which  I think  are causing my device to now display any logcat output for my app  I am getting all the logcat output except the one from the app itself   PropertyFetcher  AdbCommandRejectedException getting properties for device 04799057970ed1fc  device offline PropertyFetcher  AdbCommandRejectedException getting properties for device 03799467970ed5fg  device unauthorized  Please check the confirmation dialog on your device

User · Answer

In my case  it was literally a bad USB cable  Apparently it was right on the edge - adb logcat would work  but about half the time I would get this error when trying to push an app to the device   Changed to a different cable  and everything was fine  The old cable was also very slow at charging  so I should have suspected it sooner

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I get this error very often for some reason when doing  ionic cordova run android  and running on an emulator  What works for me is to end the  adb exe  process and re-run  Sometimes that also doesn t work and what I do is exit the emulator and in android studio do a  Cold Boot  on the emulator

User · Answer

Remove the Debug permissions on the Device  with the cell phone connected  then put them back  and ask if you want to allow the PC to have debug  accept and ready permissions  D

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I had the same problem when debugging over wlan  I could launch the application from Android Studio but couldn t get any messages in logcat    I fixed it by connecting the device to my pc via USB cable  launched the application once and everything was working  Then I disconnected the USB cable and tried debugging again via wlan and everything was working again

User · Answer

Seems strange the intricate cable amp restart solution steps     The first time I ve plugged the Android device to my Ubuntu  15 10  I ve got Connect as  multimedia or camera options and in my Android Studio the device status was unauthorized  It wasn t until I choose between one of the options that I got in the Android device the PC authorization option  When you give the proper permissions in Android then the device status changed to online in Android Studio  Cheers

User · Answer

1  Go to Phone Setting   Developer options   Revoke USB debugging   2  Turn off USB debugging and Restart Again   It will work definitely  in my case it worked

User · Answer

Below are the commands for Ubuntu user to authorise devices once developer option is ON   sudo   Android Sdk platform-tools adb kill-server  sudo   Android Sdk platform-tools adb start-server  On Device    Developer option activated USB debugging checked   Connect your device now and you must only accept request  on your phone

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Please check this   https   code google com p android issues detail id 82850  I faced the same issue  Could notice that the  adb integration  was disabled  Please enable it at your IDE  Tools   Android

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The solution to this was just to change the USB cable  having enabled  ADB Integration via   Tools    Android    Enable ADB Integration

User · Answer

I experienced the same issue   To ensure that your Android Device is expecting the correct fingerprint from the system  e g  after switching Android SDK installations -  different adb server running    do the following  actually  this did the magic for me     unplug your Android Device revoke USB debugging authorizations in  Android Developer Options plug your Device  You can accept the fingerprint once more

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This might help - Just Download and install the Android SDK version same as your mobile s android version   then run

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I ve got the same message too  In my case  I have changed my dev environment to another notebook pc and my device is samsung galaxy note 2014 edition  My OS is windows 7  My galaxy note condition listed as following   developer option activated USB debugging checked   The error message was  device unauthorized  Please check the      In general  the location of the default android setting was C  Users Your login name  android then I copied and pasted all files in the   android  folder to my new pc s setting folder   After that the problem was gone   I think the problem was adbkey file mismatched  Also  I didn t have any menu name such as revoke adb authorization

User · Answer

Download platform-tools-latest-linux zip  Run   unzip platfo  zip cd plat    adb devices     adb usb   etc

User · Answer

Simple  You must only acept request  on your phone

User · Answer

This happened to me because I enabled usb debug previously on another pc  So to mke it work on a second pc I had to disable usb debugging and re-enable it while connected to the second pc and it worked

User · Answer

In my case the problem was about permissions  I use Ubuntu 19 04 When running Android Studio in root user it would prompt my phone about permission requirements  But with normal user it won t do this   So the problem was about adb not having enough permission  I made my user owner of Android folder on home directory   sudo chown -R orkhan   Android

User · Answer

you have missed the Fingerprint Certificate Authorization dialog in your phone when you connected it  try to change the USB mode to Media  or another different than the one you have in and then reconnect your device  or go to Developer Options -  Revoke USB Debugging and reconnect  watch for the dialog and click on accept  that should solve your problems   If that doesn t work  set your ANDROID SDK HOME again  and then    Unplug device  Run   adb kill-server  adb start-server  Plug in device

[android] Android Studio - ADB Error - "...device unauthorized. Please check the confirmation dialog on your device."

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