Rispondi a: Stuck on "Android is starting... Optimizing app 1 of 1."I was stuck with 2 apps that were causing the problem. I uninstalled Zedge which was one of the apps. After rebooting and waiting for the other one to optimize I went directly to Settings/Battery and there I saw the only app that had taken up battery during the boot was on of my favorite apps Relax Melodies. I uninstalled that and then rebooted again. My phone boots normal now. I believe Relax Melodies had an update recently which may have been a contributing factor.