I have a problem with my Nexus 4.

About once in a week it goes in the "deep hibernation mode" and shows this behavior: https://android.stackexchange.com/questions/39548/red-notification-light-on-nexus-4-wont-power-on-device-unresponsive

My problem is, that this seems not to be a battery problem. Because this happens with 100% of battery, sometimes even when it is plugged to the power supply.

It is very annoying for me, because when this happens I always have to do this procedure to "solve" it:

1. Unplug the phone from the charger)
2. Press and hold the volume DOWN button plus POWER Button for 15 seconds
3. Plug it into the wall-charger (while still holding both Buttons) -> the red light should start to blink.
4. After 4-5 blinks release the buttons
5. Wait some seconds and then press the Power Button and it should boot

After that procedure it works without any problems for a week or so, and after the reboot I often have 70-100% battery.

Because the battery works then for a week I don't think it happens because of battery drain. Now has anyone another idea, why this is happening?