Originally Posted by super-user2.3
And what about the usagr details error?
Sent from my HTC One using XDA Premium 4 mobile app
don't think theres anything wrong with your phone. The usage screen shows two things: app usage and other usage, afaik the app usage only shows how much of the battery is used by different apps (android system, viber, youtube, etc) and other usage shows usage related to network, and since youre in airplane mode, it doesnt have anything to show under that category.
Try using a couple of other apps, such as youtube or music for 15 minutes, im sure theyll show up under the app usage after that. And also take your phone off airplane mode, and im pretty sure after a couple of hours the other usage category will have things such as "phone idle" or "cell standby"