I have my nexus 5 over a year and before a mounth my nexus is suddenly shut down. never dropped it, nothing. when I powered it on, I had no google logo, or boot animation, I had only pixelated screen but eventually my phone was on and everything was normal. now every time I reboot my phone I see pixelated screen until its finally on. I have unrooted, unlocked android 5.0.1 nexus 5. does there is any solutions? The company said its the screen but I dont believe them since I never dropped it.