A few weeks ago, I got updated Android 4.4.2 for Nexus 4. After I upgraded my phone.
I have noticed “No APN specified on the device” display on bottom of the screen when I turned mobile data on.
Once,this message appeared
- Battery was draining very fast.
- My Nexus 4 was hot and consumed high CPU all time.
So, my solution is reset APN configuration to default by these following steps.
- Settings> Wireless & Networks > Mobile Networks > Access Point Names > Options at the top right and then “Reset to default”