The Android 2.1 operating system from Google is open-source, meaning it's a free development platform for anyone who wants to create applications for or make modifications to the operating system. A software development kit, or SDK, is freely available, as is an Android emulator for testing applications and system modifications on Windows, Mac OS X and Linux. After development, test new applications and system modifications on an Android device by connecting the device to a computer via USB. USB debugging should be enabled to monitor the new software and identify problems before release.
Connect a USB cable to an open USB port on your computer and connect the other end to your Android 2.1 device. Press the "Home" key on the device.
Touch the Application Drawer on the home screen and touch Settings, or press the "Menu" key on the phone and touch Settings. Touch Applications.
Press Development. Touch the USB Debugging box. Press "OK" on the Allow USB Debugging window. Your USB connection with the Android device will disconnect, then reconnect with USB debugging enabled.
Drag the Status Bar down and touch the USB Debugging Connected notification. Touch the green check in the USB Debugging box to turn off USB debugging.
Tips & Warnings
- Some applications require USB debugging to be turned on when they are installed or run. You should always turn off USB debugging when you no longer need it, since it allows unmonitored access between your computer and your phone, and through it applications can be run without your knowledge.
- Photo Credit Ryan McVay/Photodisc/Getty Images
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