+1
I’m quite sure my disconnection problems were caused by this feature (like many others, potentially). As a quick fix, I removed the PIN-code protection of the SIM card to remain online. However, after reboot, the screen is not locked by default. I think this is the cause of random phone calls, randomly changed settings, music starting to play in my pocket, … sometimes funny, but more often than not rather inconvenient.
I’m not an expert at all, so I would love to learn how to remove this deep (BIOS-level) feature, instead of having to find a Fairphone case that protects the power button.