Troubleshoot ADB Device Unauthorized with 6 DIY Methods

ADB (Android Debug Bridge) shows the “unauthorized device” message when your PC finds difficulty establishing a secure connection with your Android device. However, fret not! In this guide, we’ll delve deep into adb device unauthorized error insights, providing you with a bunch of tricks to fix it.

How To Fix ADB Device Unauthorized?

Solution 1: Enable USB Debugging on Your Phone

The first solution to fix unauthorized device error in ADB is enabling the USB Debugging feature. Make sure you have this feature enabled on your Android phone. Here are the steps to be followed:

• Launch the Settings app on your phone.
• Scroll down and select Developer options.
• Now, check if USB Debugging is enabled or not. If not, toggle on the USB Debugging option.
• Tap OK to confirm.

Also Read: How To Enable USB Debugging On Android With Broken/Black Screen?

Solution 2: Change USB Cable & Port

Sometimes, faulty USB cables or damaged USB ports can cause connection issues. So, if you are getting this error still after enabling USB Debugging, go for checking your USB cable and port.

If found faulty, try using a different USB cable or a different USB port on your computer to see if that resolves the issue.

Solution 3: Revoke USB Debugging Authorizations

If you have previously connected your Android device to another computer, the USB debugging authorization may have been granted to that computer.

To revoke the authorization, follow the steps below:

• On your phone, open Settings.
• Then, head to the Developer options.
• Scroll down and select the Revoke USB debugging authorizations option.
• Click on OK to confirm.

Solution 4: Restart the ADB Server

This will restart the ADB server and may resolve the unauthorized device error. Here, you need to follow the bellow simple steps:

• Go to the Start. Type cmd in the search box and hit Enter.
• Now, on the Command Prompt, type the command adb kill-server followed by hitting the Enter key.

• Next, type adb start-server and again press Enter.

• Now, this will restart the ADB server.

Also Read: 4 Effective Solutions To Fix USB Debugging Option Greyed Out Issue

Solution 5: Update USB Drivers on Your System

Outdated or corrupt USB drivers on your system can also cause ADB device unauthorized error. So, make sure you use the latest USB drivers to fix this problem.

Follow the below steps:

• Press the Win + R keys together to launch the Run dialogue.
• Now, type devmgmt.msc on the run box and hit the Enter key to launch the Device Manager.

• Then, double-tap on the Universal Serial Bus Controllers and look for the USB device.
• Now, make right-click on it and select the Update driver.

• Select the Browse my computer for driver software option and follow the on-screen instructions.
• When updated, try connecting your Android phone to PC again and check if the error disappears this time.

Solution 6: Install the Latest ADB Version

If you are using an outdated version of ADB, it might not be compatible with your Android device’s current software version. Try updating to the latest version of ADB to see if that resolves the issue.

Also, it’s recommended to keep the ADB version up-to-date to ensure optimal performance and compatibility.

To update the ADB version, you can follow these steps:

• Go to the official Android SDK Platform-Tools website and download the latest version of the platform tools for your operating system.
• Extract the downloaded zip file to a folder on your computer.
• Connect your Android device to your computer via USB.
• Open a command prompt or terminal window and navigate to the folder where you extracted the platform tools.
• Type the command adb version to check the current version of ADB.
• If the version is outdated, replace the old ADB executable with the new one in the platform-tools folder.

Use Android Repair Tool to Fix Android-Related Issues

If you are facing any kind of trouble with your Android device, the Android Repair Tool is the best software to get rid of Android issues.

This software is specifically designed to resolve Android-related issues including stuck on bootloop, blue/black screen, app crashing, and many others.

It is compatible with 100+ Android devices including Samsung, Nokia, Oppo, Xiaomi, Vivo, and many more. So, simply download the software and follow its user guide.

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FAQs

What causes the ADB device unauthorized error?

This error generally occurs due to lose USB connections, outdated USB drivers, and disabled USB debugging.

Is it safe to enable USB debugging on my Android device?

Absolutely! USB debugging is completely safe. However, it is advised to exercise caution granting USB debugging access to unknown or unfamiliar PC or applications to prevent unauthorized access to your device.

Can I fix the unauthorized device error on macOS?

Yes, you can fix this error on macOS also by following the same troubleshooting techniques. The methods above can work both on Windows PC and macOS.

Are there any alternative methods to connect to my Android device without using ADB?

ADB is a widely used tool for establishing a connection between PC and Android device. However, if you are looking for an alternative, you can use other wireless debugging or third-party applications that offer connectivity options.

Conclusion

ADB device unauthorized can be frustrating but with this comprehensive guide, you can easily be able to bypass this error. Just follow the instructions as mentioned and enjoy a hassle-free connection between your PC and Android device.

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