disable autopower off when disconnected?

First, the mini is a fabulous device, love it.  However for one of my new use cases I need to change the fact that it autopowers off when disconnected from power.  The idea is that I need to set this up to run off of solar in a far away place.  Best case scenario with the mini is that I can track during the day.

I know other Inreach units have this option, is there a backdoor into the mini where I can modify this setting?