Originally Posted by ryo2456
yes I think my USB PORT is done too. so I decide to repair it by myself because the fee is about HKD $200...
I don't think it's your USB port nor your phone, it's the computer and drivers. Try what's in these threads;
I did all that and still no connection then I did this:
I opened up device manager and had a portable device < Nexus 4 listed w/a yellow triangle. then in another window I ran the WUG Toolkit and picked root. WUG told tried to work but gave me the error page that said I was not connected or turn on debugging etc. I went back to device manager and had to r/click on my device to bring up properties picked the driver tab and then the update driver choice. Right away, with doing nothing else, an android device populated the list and I went back to WUG clicked ok on the error message, telling it to root my device. Sure as hell after 4 days WUG rooted my device successfully and as it finished I had a message pop up on my taskbar telling me that the Google Nexus 4 drivers had successfully loaded. The root process had rebooted my phone so thats why I got the message, I think.
And now all is good in the hood.