So, until 2 days ago, phone all working fine, on latest 18.04.1.
I was using Audible, and the app crashed (possibly the whole phone crashed and restarted - I was travelling and so didn’t look for 5 minutes). I couldn’t restart Audible - got either “App not responding, wait or close?” or no response to pressing the icon either. I figured I’d reinstall the app - I uninstalled it OK - but could not reinstall, Play Store would take ages, then eventually put up a warning “triangle” message saying app couldn’t install. I thought it was some weird Audible bug, maybe some corrupt memory.
Yesterday, tried to take a photo - a few seconds later got a “Camera error: There was a problem saving your photo or video” message. Tried again, this happens again. Odd. I’ve not had that problem before.
Today I thought I’d try deleting all the Audible content files, in case they had got corrupted. Used “Amaze” file browser, it seemed to say they had deleted but they didn’t go away. So plugged into laptop on USB, and deleted them from there. This time they seemed to delete. Restarted phone, tried to install Audible. Still Play Store gives an error. (This is all on excellent wifi signal)
I tried installing some other apps. One, which I had installed until about a month ago, installed OK although it was slow - a couple of minutes for a 20MB app. Well, I can live without Audible, so I give up on that for now.
But trying to take a photo again, I’m getting the same problem - cannot save file. Restarting the phone makes no difference - still unable to save an image. In Settings, I can see both the internal and SD card memories, they look OK - both about 1/3 full.
So I assume I have some sort of memory/disk error, which means that some (?) parts of memory aren’t writable? Maybe?
Ideas for how I might fix/debug this welcome. I’m not worried about Audible, but not being able to save Camera photos is a big problem. (I’ve not noticed any other problems; my other apps mostly use cloud storage eg gmail, twitter, but then i’ve not exhaustively tested things either).