android 4.2.2: cannot see device through usb

Question

I am using Samsung Galaxy nexus for several years. I always update my kernel. Now, it is 4.2.2. I haven't developed on my phone for a year. Recently I pickup my old project and found out my computer (Windows 7 64bit) cannot connect to my phone for debugging.

My computer can connect my phone for files transfer, but not for debugging through eclipse. Adb.exe cannot list the device either. I do some searchings on the web and found out I am not alone. However, I still got no solution. I hope someone could help.

Or anyone can give me a way to read the error/information log like logcat does. Thank you very much!

Regards,

Antony

Answer 1

If your phone is not enabled for debug, try this (from How to find and turn on USB debugging mode on Nexus 4):

1. Open up your device’s “Settings”. This can be done by pressing the Menu button while on your home screen and tapping “System settings”

2. Now scroll to the bottom and tap “About phone” or “About tablet”.

3. At the “About” screen, scroll to the bottom and tap on “Build number” seven times.

4. Make sure you tap seven times. If you see a “Not need, you are already a developer!” message pop up, then you know you have done it correctly.