I bought and iphone 6 in December 2014. Recently it's stopped working. I put it on charge every night before bed, well last night I put it on charge and woke up and my iPhone will not turn on. I have pressed the lock and home button for atleast 30+ seconds and nothing is happening. I've tried leaving it on charge Abit more, and still nothing. It's just a black screen. I've only had my phone for nearly 8 months and I was wondering would Apple fix or replace it? I have a 12 month warranty. I am very curious and I would like some further advice.
take it to the Apple Store, they'll be able to fully diagnose the issue, perhaps its a battery not holding a charge properly. If you're still under warranty(which you mentioned you are) then they will furnish you a replacement in the mean time while yours is being serviced.