I'm using my phone as more of a tablet computer and less of a phone (I'm not using cellular radio, only wifi Internet), so I didn't put a SIM card in it.
The issue is - the notification that I don't have a SIM card in my phone always shows up in the notification bar:
I am already running the phone in airplane mode and then enabled wifi, but the issue persists. I also tried force stopping the 'Phone' app and it does remove the notifications, but it comes back after phone restart.
How do I disable or hide these notifications permanently?
The phone is a Lenovo A536. Android version is KitKat 4.4.2.