My S4 is doing all the same things described here- my phone is essentially bricked since the update
. The phone often has problems turning on, similar to other users the screen sometimes never turns on or sometimes both the buttons at the bottom will illuminate but still not function. Often when the screen DOES eventually come up it is unresponsive and I have to pull the battery. I've also noticed the lock-out screen no longer passively updates the current time; for example tonight it said 7:24 pm when it was really after 9 pm. I have also noticed several apps were missing after the update, and what
did remain I audited to ensure I really still used and removed any that were not crucial hoping this would speed things up. No luck. I am in the habit of clearing the RAM on regular basis and have almost 1GB afterwards (hovers around having 500-800 free before clearing this cache) so there should be plenty of computing power here - the update has clearly created some major issues for a lot of users.
If anyone has a solution to fix all these annoying bugs you will forever by my hero!
P.S. Like other users in the thread work security protocols require me to use the encrypted/password option for the the lockout screen so just turning off this feature is not an option for me either.
Using: Sprint Samsung Galaxy S4
Android Version: 4.4.2
Not rooted