Here are 4 suggestions for non rooted users, try them in the order they are shown to see which one works for you ...
1.Boot into Safe Mode. This is like safe mode on a PC and only loads the system apps. Check to see if you still are experiencing a problem. If not, the issue is with the user apps and/or settings. See items 2, 3 and 4. If you do experience problems in Safe Mode with no users apps or settings loaded, then you have a corrupt firmware update and you will need to either take it to a Samsung Service Point or your service provder for a firmware flash or, for competent users, you can re-install the firmware, if available, by downloading it to your PC and flashing it via Odin as per the instructions in #1.5 of 18 Galaxy S4 models - know yours?.
…if your device is idle and plugged in for over an hour, it will run the “start idle maintenance window” event. However, this will only take place if the “start idle maintenance window” event hasn’t been sent in the past 24 hours, and if your battery level is either greater than 80% or you are plugged in and have greater than 30% battery."
Right, so you wiped the cache partition in Recovery mode, as per #3 of post #2.
So, you weren't getting the lag in Safe Mode as per #1 of post #2?
just did. . . seems no issues. .that's my phone's performance when it was new. . thinking if it's caused by some apps installed (OR ITS POSSIBLE that some apps are not compatible with the latest update? ) it happened to me before, upon update, it resulted that the APPLICATION LOCK app caused the rapid battery usage.. (i posted this as well here. . . )
The all-new Samsung Galaxy S4 is all but guaranteed to be the next top-selling device. The new device is dubbed the "Life Companion" due to its intuitive features. The Galaxy S4 sports a 5-inch 1080p Super AMOLED display, an awesome 13 MP... Read More