[Q] Galaxy Nexus not charging

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http://forum.xda-developers.com – My phone isn't charging at all. In an attempt to charge, I turned it off and plugged in the charger. The charging animation did come up bit it would keep on coming up (like it's in a loop) and my phone still won't actually charge. PC wasn't recognizing the phone either. Was saying that the USB device is not recognized. I tried pushing up the metal inside the USB slot too. Not working. Maybe I haven't done that correctly. What exactly could be the issue? The fact that the screen shows the charging animation when phone is off makes me feel that the USB slot may not really be faulty. (HowTos)