On Android 4.1 and lower, the Developer options screen is available by default, on Android 4.2 and higher, do the following: Open the Settings app Scroll to the bottom and select About phone. Scroll to the bottom and tap Build number 7 times [img=https://www.deskshare.com/forums/images/posts/MSRPpost3774-1.png]USB Debugging[/img] Return to the previous screen to find Developer options, turn it ON Scroll down and enable USB debugging. [img=https://www.deskshare.com/forums/images/posts/MSRPpost3744-2.png]USB Debugging[/img] If USB debugging is already enabled and device is not connecting and not listed then: Open the Settings app Search for 'USB Preferences' option Set 'USE USB FOR' to 'PTP' as shown in this screenshot: [img=https://www.deskshare.com/forums/images/posts/MSRPpost3744-3.png]USB Debugging[/img]