As an Android developer, you have two ways of debugging your app. One is via an emulator and the other is with a physical Android device. In this post, I will be sharing 3 common issues that may cause Android Studio to not detect your physical device.



1. USB Debugging not enabled (properly)
If you don't enable this option on your phone, Android Studio will not detect it. The step to do this varies a little bit on different devices. A quick Google search for how to enable USB for your specific device will help.

2. ADB drivers not installed
If you use a Windows computer you might have to check that ADB drivers for your phone is installed properly. You can check this via device manager after connecting your phone. Again, you can do a Google search for drivers for your device.

3. Faulty USB port or cable
Make sure you are using a USB cable that supports data transfer. There are some cables that only charge devices. If you change multiple cables without luck getting ADB or file transfer to work, it might be an issue with your USB port. Sometimes it's easier to get file transfer mode to work than ADB so don't just use your issue with ADB to confirm that your USB port might be bad.

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