I could save patterns and other things to my phone. Just recently I stopped being able to save. At first it seems fine but when I try to go back to them I get an error saying that file cannot be displayed. What am I doing wrong.
What type of files are you trying to create/access ?
If you had set an app as the default app to open certain files…and then removed that app…then it wouldn’t know how to open those files.
You can reset your app settings here
Settings -> Apps -> three vertical dots -> Reset app preferences.
This will suggest available apps that might be able to open a given app.
You can also use a file browser such as
to confirm the existence and location of the files that you are creating.
I can no long recommend ES File explorer since they now include to much bloat, (including a lock screen take over) I have move to Total Commander but there are lots of file explorers https://www.google.com/search?q=total+commander&oq=total+commander&aqs=chrome…69i57&sourceid=chrome&ie=UTF-8#q=file+Exp…