Some folks are having a problem when they type an 'I' on their iPhone or iPad. they,re getting an A with a question mark symbol [?] next to it. This is a problem in iOS11 that oddly only affects some users.
Apple has released update 11.1.1 that is supposed to fix the problem. If you haven't updated yet or need to hold off updating, there is a work-around. Go to:
Settings
General
...
