My Nexus 4 screen started to turn yellow too, and a few weeks later (coincidentally, at the end of last week) the battery bloated like in the OP. So be aware th

My Nexus 4 screen started to turn yellow too, and a few weeks later (coincidentally, at the end of last week) the battery bloated like in the OP. So be aware that you might just be covering up symptoms of an imminent death of your phone's battery.