How to Bypass ADB Device Unauthorized Message

How to Bypass ADB Device Unauthorized Message

Android Debug Bridge (ADB) is a handy tool that lets a user control their android device from a computer or laptop. It provides features such as installing apps through the computer and also lets us debug apps. By default, ADB functionality is disabled on Android phones. They need to be turned on manually from the Android phone by the User. Android Users report errors in ADB and face issues like ADB device unauthorized messages. If you are searching the internet for an article to explain how to solve this particular problem and/or if you are wondering if is there a way for ADB device unauthorized bypass, then keep reading, Here I will show you the methods and fixes to bypass ADB unauthorized errors and ADBlink device unauthorized. Let’s get started!

How to Bypass ADB Device Unauthorized Message

How to Bypass ADB Device Unauthorized Message

Let us see some of the causes of this issue before we move on to the methods to fix the issue

  • Faulty USB connection
  • RSA fingerprint prompt not appearing
  • Incorrect ADB Connection
  • USB drivers issue
  • ADB drivers issue

Note: Since smartphones do not have the same settings and may vary from device to device hence, ensure the correct settings before changing any. The following methods were tried on Moto g(8) Power lite Android 10 (Stock)

Method 1: Change USB Connection

Android Users reported they could not receive proper prompts when performing ADB activities, if the USB is interrupted in middle then there is a chance for an ADB device unauthorized message to occur, this could be due to a possible fault in the USB connection (in USB hub or USB cable). Try changing the USB cable and the USB hub to see if that solves your issue.

USB cable
Photo by Lucian Alexe on Unsplash

Method 2: Update USB drivers

When you have connected your mobile with the PC, chances are that it wasn’t recognized by the PC due to faulty USB drivers. Thus, updating USB drivers might be helpful in this scenario.

1. Hit the Windows key, type Device Manager, then click on Open.

open Device Manager. How to Bypass ADB Device Unauthorized Message

2. Double-click on Universal Serial Bus controllers.

right click on universal serial bus controllers

3. Right-click on your USB driver and select the Update driver option.

click on update drive option. How to Bypass ADB Device Unauthorized Message

4. Now, click on Search automatically for Updated driver software to let Windows install the drivers automatically.

click on search automatically for updated driver software to let windows search an appropriate driver

5. Repeat the above steps for all USB drivers under the Universal serial bus controllers section

Also Read: How to Install ADB (Android Debug Bridge) on Windows 10

Method 3: Android SDK

Make sure you have downloaded and extracted the Android SDK to avoid an ADB device unauthorized message. Following are the steps to download Android SDK to bypass ADB device unauthorized message.

1. Go to Android SDK download page.

2. Scroll down and click SDK platform tools for Windows

click on download sdk platform tools for windows link

3. Read the Terms and Conditions, scroll down and check I have read and agree with the above terms and conditions option.

scroll down the windows and tick on the checkbox to accept the terms and conditions. How to Bypass ADB Device Unauthorized Message

4. Click on Download Android SDK Platform-Tools for Windows. The Android SDK will be downloaded.

click on download android sdk platform tools for windows

5. Navigate to the download folder and extract the Android SDK files.

With this SDK, you will have all the required ADB files.

Method 4: Enable USB Debugging

USB Debugging allows an Android device to be controlled by a computer through a USB connection, this function allows applications to be installed from a computer and a couple of other functions too. To make sure if you have enabled USB debugging. Here are the steps to enable USB debugging to bypass ADB device unauthorized message.

1. Swipe down the Notification bar in your Home Screen.

2. Tap cog icon to open Settings.

tap on settings

3. Then, tap on System setting.

scroll down and tap on system menu. How to Bypass ADB Device Unauthorized Message

4. Select the Advanced option.

tap on advanced dropdown

5. Now, tap on Developer options.

now tap on developer options

6. Switch On the toggle for Developer options.

toggle on the developer options

7. Tap on OK to Allow development settings?

tap ok to turn on developer mode. How to Bypass ADB Device Unauthorized Message

Also Read: How to Change USB Settings on Android 6.0

In case you cannot see the Developer options then you might not have enabled it, to enable developer options,

1. Launch your device Settings.

tap on settings

2. Then, tap on About phone option.

scroll down and tap on about phone. How to Bypass ADB Device Unauthorized Message

3. Tap the Build number 5-7 times to activate Developer mode.

tap on build number to activate developer mode

4. A prompt mentioning you are now a developer message will be displayed.

If your developer mode is visible then no need to follow the above step.

1. In Developer options, scroll down and switch On the toggle for USB debugging.

turn on usb debugging. How to Bypass ADB Device Unauthorized Message

2. Tap on OK in the prompt asking to Allow USB debugging?

tap on ok to turn on usb debugging

Also Read: Fix USB OTG Not Working On Android Devices

Method 5: Request Access from CMD

If you connected your device and enabled USB debugging but did not receive the request from the PC, then follow the below steps.

1. Navigate to the platform-tools folder where the Android SDK is extracted.

2. Type CMD on the address bar and hit Enter key.

type cmd in the platform tools android sdk you downloaded earlier

3. Type adb devices command and hit the Enter key.

type adb devices in cmd. How to Bypass ADB Device Unauthorized Message

4. If you didn’t get the request now after entering the command you will receive the prompt on your Android Phone.

5. Check the Always allow from this computer option.

6. Tap on ALLOW in the prompt.

tap on the checkbox near always allow from this computer and tap on allow

Method 6: Restart ADB Connection

Sometimes ADB device unauthorized message occurs due to a faulty connection with the Android device. This can be fixed by re-connecting the ADB connection by revoking the USB connection.

In the previous solution if you still did not get the prompt or still getting ADB device unauthorized message, follow these steps to ADB device unauthorized bypass.

1. Go to the Notifications panel.

2. Tap on cog icon to open Settings

tap on settings. How to Bypass ADB Device Unauthorized Message

3. Then, tap on System setting.

scroll down and tap on system

4. Next, tap on Advanced setting.

tap on advanced dropdown

5. Now, open the Developer options.

tap on developer options. How to Bypass ADB Device Unauthorized Message

6. In Developer options toggle off the USB debugging option.

tap on developer options toggle to off

7. Under USB debugging, tap on Revoke USB debugging authorizations.

tap on revoke USB debugging authorizations

8. Tap on OK to confirm

tap on OK. How to Bypass ADB Device Unauthorized Message

9. Restart your phone by holding the Power button and tap on Restart.

long press power button and tap on restart to restart phone

10. Finally, remove your phone from the USB connection.

Also Read: How to Unlock Bootloader Via Fastboot on Android

After the above procedure, follow these steps.

1. Now connect your Android mobile to your computer again.

2. Launch your Android device Settings.

tap on settings. How to Bypass ADB Device Unauthorized Message

3. Then, tap on System setting.

scroll down and tap on system

4. Next, tap on Advanced setting.

tap on advanced dropdown. How to Bypass ADB Device Unauthorized Message

5. Now, tap Developer options.

tap on developer options

6. Then, turn on USB debugging.

tap on USB debugging toggle to on. How to Bypass ADB Device Unauthorized Message

7. Swipe down the notifications bar where it shows charging mode, tap on it.

pull down notifications bar and tap on charging device notifications

8. Select the File Transfer option.

tap on file transfer option. How to Bypass ADB Device Unauthorized Message

9. Then, run adb devices command in CMD at the platform-tools folder.

type adb devices in cmd

10. This will fix the ADB device unauthorized message

devices attached successfully. How to Bypass ADB Device Unauthorized Message

11. Alternatively, choose PTP instead of File Transfer in Step 7 and continue the above steps.

tap on PTP or photo transfer if file transfer does not work

Also Read: 13 Best File Transfer Protocol Clients for Android

Frequently Asked Questions (FAQs)

Q1. Why do I get an Unauthorized device error?

Ans. It simply means that the user did not give a permit to access the Android device through ADB for use with a computer, follow the guide to fix this issue.

Q2. Can ADB run without enabling USB debugging?

Ans. No, ADB requires USB debugging to be turned on by the user to get authorization from and an Android device and further communicate with it. Also with this USB debugging and RSA fingerprint of the computer only will the connection between the computer and android will be successfully be established.

Q3. Can I remove ADB devices without disconnecting my devices?

Ans. Yes, you can do so by just turning off USB debugging.

Q4. I don’t have developer options, Why?

Ans. Android developer options are disabled by default, to enable it you need to tap build number 6-7 times. Refer to your manufacturer’s website to know your particular model setting.

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We hope that the above article on how to bypass ADB device unauthorized message was helpful to you and you were able successfully to fix your issue, don’t forget to mention which one of the methods worked for you. If you have queries and/or suggestions about the article feel free to drop them down in the comment section below.

Posted by
Elon Decker

Elon is a tech writer at TechCult. He's been writing how-to guides for about 6 years now and has covered many topics. He loves to cover topics related to Windows, Android, and the latest tricks and tips.

1 Comment

  1. So I have usb debugging enabled BUT I forgot the pattern lock so I cant accept the rsa key to allow. I continue to get unauthorized. Am I screwed

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