Originally Posted by
D13H4RD2L1V3 Something tells me it's not a virus.
But the now-infamous bootloop issue.
Ditto. The boot loop problem the G4's are known for is a hardware issue, so there's nothing you can do from a software standpoint (deleting apps, resets, etc) to address it. One thing you can try is putting it in the freezer for about 15 min before booting. The issue is the result of a bad electrical connection due to heat expansion. Keeping it extra cool keeps the connection closed and usable. If this trick gets yours working again, keep it in the freezer while you back everything you need up. Then file a warranty claim.
This is most common on devices manufactured from May to August of 2015, but I've seen a few reports of devices made outside of that date range being affected too. Mine included.