For first-time use of ADB GUI, you might need to perform the following setup steps.

Enable Developer options

1.On your Android device, find the Build number option.

Most Android device Settings > About phone > Build number

Samsung Galaxy Settings > About phone > Software information > Build number

2.Tap the Build Number option seven times until you see the message You are now a developer!

3.Return to the previous screen to find Developer options at the bottom

Enable USB debugging on your device

Enable USB debugging in the device system settings under Developer options. You can find this option in one of the following locations, depending on your Android version:

Settings > System > Advanced > Developer Options > USB debugging

Settings > System > Developer Options > USB debugging

Settings > Developer Options > USB debugging

Connect to your device using USB

When you're set up and plugged in over USB, Please click the Add button or select a device and click the Connect button in the upper-right corner of this page.