This count for Nexus 7 and may count for others as well.

Normally you go to settings / Applications / Development / USB debugging but from Android 4.2 the Development part is hidden.
You unhide it this way:
Go to Settings / About phone.
Find the Build number
now Tab on Build Number repeatedly about 7 times.
After touching 7 times you see a message 'You are now a developer' and the developer menu is back. It is found in Settings / System.

2016:
Now it is Huawei P8 lite with Android 6.0, and you still have to unhide the developer menu.
Go to settings / About the phone and tab on Build number (Versionnummer in Danish) 10 times. The developer menu is now found in Settings.

Best regards
Viggo Poulsen



Edited 2 time(s). Last edit at 11/21/2016 07:45PM by Viggo Poulsen.
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