For the last few weeks my phone was dying at 50% battery (no turning off animation, just instant shutdown). I changed my ROM from Cyanogenmod to Paranoid Android, the problem still remained. Few days ago phone started to random reboot. Today I removed the case and found out that the glass of the back of the phone is very shattered, and a bit swollen (few mm above phone level). Now It doesn't even turn on (bootloop with Google text).Is it possible to return it for warranty (phone is about 8 months old) or should I just buy a new battery and a back cover.