My phone went dead last week just like that, out of nowhere. Called amazon and they asked me to go to LG service center or reach Google. Went to LG, they suggested to replace motherboard(with 3 months warranty only, costing 12,000 Rs). I do not want to spend even a single rupee on this phone anymore. Previously had replaced the motherboard of my Nexus 5, with disastrous side effects(Interestingly in those 20 mins at the service center, they had 4 customer with 4 different phones and 4 different issues and the suggestion to all of them was to replace motherboard).
The phone was amazing till it lasted. But spending 32,000 on a phone for 14 months, with no repairs available is a bit too much. Not Happy.
As someone has rightly mentioned, I too thought I was buying from Google, but I guess I was wrong too.