Issues after updating Nexus 4 to Android Lollipop I am observing the following behavior after upgrading (flash and upload factory image, no OTA) my Nexus 4 to Android Lollipop.


When I clear all the recents, and again try to view recents, I am
still able to see apps over there (most of the times, I see Android System )
Battery is draining very fast.
Battery charging speed is drastically reduced.
While trying to call from the Speed Dial tab, the call screen comes up after a while. I kept on tapping the contact but the call was already started in the background.


Is it currently possible to install/update to Android Lollipop on the Nexus 4 without these being an issue? If so, how?
I did a factory reset and its working fine now. May be there was a problem in upgrading.