Mine bricked today, S/N 506. Luckily I bought my phone 363 days ago so I still had 2 days left on my warranty. I went into At&t today and they told me it is a known issue with the G4 and Andriod Marshmallow but from what I can see this issue goes way back before marshmallow.... They did a call in warranty and I have to wait 2 days to get my replacement... I have honestly always favored LG phones over other phones but because of the length of this issue and LG obviously screwing people over I think I am done with them. Samsung S7 here I come!!!