ehh mine is a 512 as well

hearing all the 512 users getting bootloops now is scary
when did you get your 512 mobo installed in your phone? I got mine installed late Dec (after Christmas), so far no bootloop after more than 6 months but theres always that uncertainty about what point in time did LG exactly switch over from the 'wrong fix' to the 'correct fix' because there definitely was 1 point in time when they were screwing up an entire batch of fixes (hence the people who got 2nd bootloop)
actually although I did get my 512 motherboard late Dec 2015, I did subsequenty revisit the LG service centre again on 2 more occasions in 2016 (for camera fix and for LCD replacement due to image retention), not sure if the tech staff auto-inspect for whether the bootloop fix is the 'correct fix'