Occasionally when you turn on your Android device, the phone screen freezes and then you get the message: ‘Android is starting. Optimising application 1 of 1'. This error appears when an application isn’t correctly installed or there was a problematic update.In this article, we’ll show you how to solve this problem.
The first thing to do is a Soft Reset. Hold the power and volume down buttons for ten to twenty seconds. Once the phone restarts, delete the problematic application and re-install it again. Unfortunately the error message only indicates the number of applications involved (one usually), but does not say which one it is. If you’re not sure which app is causing the problem, there are some steps you can take to figure it out, starting by checking the Log files of the phone.
logcat > log.txt