When you want to flash, root, backup, upgrade or recover deleted data from your Android device, you will need to enable USB debugging first. This is in order to connect and communicate with your Android device. The USB debugging mode is disabled for any brand new device by default, to avoid unintentional modifications on your device. But you need to enable it manually for your Android development process. For different Android OS versions, there will be different configurations to turn on the USB debugging mode. And this guide will show how to enable it.
For Android 2.3 or earlier
Settings> Applications> Development> USB Debugging
For Android 3.0 to 4.1
Settings> Developer Options> USB Debugging
For Android 4.2 or newer
1. Open Settings > About > Build number on your Android phone or tablet.
- If you have a Samsung Galaxy S4, Note 8.0, Tab 3 or any other Galaxy device with Android 4.2, open Settings > More tab > About and tap it.
- If you have Galaxy S5, Note 3 or any Galaxy device with Android 4.3 or later, check Settings > General > About.
2. Now tap the Build number for 7 times. Then you will see a messages “You are now a developer!” or “Developer mode has been enabled”.
3. Return to the main Settings menu and now you’ll be able to see Developer Options. Tap on it and mark the box in front of USB Debugging to enable it.