I suspect that my Nexus 4 micro USB port is broken. My PC will not recognise it any more although the USB cable will still charge. It does not make any sound when connecting to my W7 computer and it does not show in the device manager. I have enabled and disabled USB debugging and MTP multiple times and it does not make a difference. I have tried in 2 different laptops with the same result. I unrooted my phone to upgrade my android version to the latest and after doing that I am not able to root it again because my USB connection is broken.
I was wondering if there is anyway to root my phone without a cable (some autoroot application which will run automatically after restarting the phone???).
Any ideas would be welcome.