There are absolutely no diagnostics, every setting (including critical ones) seems to move around between OS updates. They’re constantly breaking things you actually need (termux API is missing half of what’s useful and silently fails on most things now) while still letting malware installed by manufacturers through. I think when I first connected the phone to a network it pulled down ~1Gb of shovelware including facebook. Thankfully it was on WiFi since I didn’t want to use up the data until we launched the balloon.
This of course never worked. It was able to connect and use data for about 30 minutes, I’m not sure what we did to make it work but it randomly stopped after that.
Mobile OSes need to die, they don’t help people they’re just another tool for corporations to push users through confusing broken mazes in order to manipulate them.