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!
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.
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.
2. Double-click on Universal Serial Bus controllers.
3. Right-click on your USB driver and select the Update driver option.
4. Now, click on Search automatically for Updated driver software to let Windows install the drivers automatically.
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
3. Read the Terms and Conditions, scroll down and check I have read and agree with the above terms and conditions option.
4. Click on Download Android SDK Platform-Tools for Windows. The Android SDK will be downloaded.
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.
3. Then, tap on System setting.
4. Select the Advanced option.
5. Now, tap on Developer options.
6. Switch On the toggle for Developer options.
7. Tap on OK to Allow development settings?
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.
2. Then, tap on About phone option.
3. Tap the Build number 5-7 times 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.
2. Tap on OK in the prompt asking to Allow 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.
3. Type adb devices command and hit the Enter key.
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.
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
3. Then, tap on System setting.
4. Next, tap on Advanced setting.
5. Now, open the Developer options.
6. In Developer options toggle off the USB debugging option.
7. Under USB debugging, tap on Revoke USB debugging authorizations.
8. Tap on OK to confirm
9. Restart your phone by holding the Power button and tap on Restart.
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.
3. Then, tap on System setting.
4. Next, tap on Advanced setting.
5. Now, tap Developer options.
6. Then, turn on USB debugging.
7. Swipe down the notifications bar where it shows charging mode, tap on it.
8. Select the File Transfer option.
9. Then, run adb devices command in CMD at the platform-tools folder.
10. This will fix the ADB device unauthorized message
11. Alternatively, choose PTP instead of File Transfer in Step 7 and continue the above steps.
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.
