Can't get Nexus 4 to be recognized by computer
I had a similar problem. My LG Nexus 4 wasn't listed in adb devices.

Make sure USB debugging is enabled from device, and do the following on your PC:


Update Android SDK (Google USB drivers updated)
From PC Control Panel, System -&gt; Device manager -&gt; Nexus 4 -&gt; Install driver.
Set Android SDK as path to search, include subfolders checked.


After that, adb devices list will include Nexus 4.