1. vikingninja's Avatar
    When I lock the screen sometimes the S4 does not want to wake up. If i hit the home button and let it sit for 30 seconds, it finally comes back on. sometimes its real cranky. When I reboot I get an error that says com.android.systemui has stopped.
    05-28-2014 07:09 PM
  2. mobilecrackers's Avatar
    When I lock the screen sometimes the S4 does not want to wake up. If i hit the home button and let it sit for 30 seconds, it finally comes back on. sometimes its real cranky. When I reboot I get an error that says com.android.systemui has stopped.
    go to recovery and clear cache then data
    05-31-2014 11:28 AM
  3. rando991's Avatar
    I fixed my wife's S4 (with kit Kat) lockup issues by reformatting (not the quick format, the long one) the SD card and turning off an app called Samsung Watchon. I think it was the app that made the difference based on what others have said. There are two WatchOn apps on your phone, but the one you can turn off is there one you need to turn off

    Sent from my SPH-L710 using Tapatalk
    06-05-2014 12:00 PM

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