Not one boot loop. That's a few hundred phones with quite a few LGs so my answer is that it's very low.
That's what warranties are for. To correct issues that escape initial testing and more. No maker can escape what is known as "the bath tub curve." Many consumers are unaware of this and expect machines to be as reliable as a brick. Sorry, bricks are very reliable.
I wanna buy a used LG V10 but I am hesitant after reading about the hardware boot loop issue. Most of the hits I've found are for the G4 and it's obviously a real problem because LG is addressing it under warranty and I've only found a couple of hits for the V10 experiencing the issue.
So how big is this issue? And does anyone know if this problem just shows up one day or is there a pattern when it shows up? Since I'm buying this used I doubt that I'll be able to get any help under warranty.