Boot loader. Didn't believe it would happen to me. 14 months (2 past warranty). Verizon said 'sorry' you are beyond the warranty. Took me 2+ hours on the phone to convince them (10+ year customer etc). They finally agreed to send me a new phone. Given a choice I took a free v10. I know that the v10 is also susceptible to boot failure. If the v10 fails it's good bye LG. This is a manufacturing defect. At least Samsung backed up their customers when the batteries began to explode. (thanks for listening to my rant.