Android adb install returns error:device not found - Windows 7 [duplicate]

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adb cannot find my device for Android debugging. Why?

I'm trying to download my hello world Android app. to my Motorola backflip, it's connected to a USB port on the PC and I've previously downloaded the USB drivers for the phone. adb devices does not seem to list the phone either. What can I do to get this working? I am running Windows 7.

TY, Fred

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On the phone itself you need to allow development in one of the menus.

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I think it's because your phone isn't recognized by your windows pc. I suggest to see if it's on the device management menu.

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Afew things to try:

1. Use a different USB port
2. Enable debug mode on the phone
3. Do NOT mount the media to the computer if you want to use adb