[hnick]

For the iPhone at least there is a fairly extensive user guide online. It doesn't help much for technical issues but did a decent job explaining how to do things.

In my case, I learned about setting up a triple-click shortcut to pop up the accessibility menu so I could unmute the phone via software due to a broken side switch that won't stay on. I'm sure this is available elsewhere online, but using Google just took me to the regular places - typically someone posting on an Apple forum trying and failing to get help.