Should the Notes application keep all data with an upgrade from iOS 9.1 to iOS 12?
I have an iPhone 6 + running iOS 9.1. I know I am running an older iOS, but this is for many reasons, most importantly, there is no backwards compatibility with certain versions of apps for later iOS versions. I keep older app versions for music, and other reasons.
I’ve been recently experiencing performance issues on the older iOS, and I knew all along that I would eventually need to upgrade. I think this is that time. I know I should upgrade for best performance/security/updates etc. so I want to make sure that the Notes application should keep all of the data during the upgrade. I backed up all of the other data on my phone that I care about, including all of the Notes on my phone except for one longer one, which wasn’t able to send from my phone on any share method (sending to myself via email, Facebook, AirDrop, etc. when clicking the icon with the arrow pointing out of the box. All failed with different errors like “Cannot send.” I figure the file is too big to share using this function.)
One of the performance issues I’m experiencing is being unable to connect to iCloud on the phone. I receive an error stating “Incorrect Password” when entering the correct password for iCloud. I know that I am using the correct password, because I am able to login with my AppleID on other devices with the same passoword. I was told by the Apple store that there can be all kinds of problems like this with the older iOS versions, and recommended upgrade to iOS 12.
Thanks for any suggestions or help in advance!
TL;DR: Experiencing lots of technical issues with older iPhone 6 + running iOS (9.1), cannot connect to iCloud (“Incorrect Password” error received). Need to know if the native Notes application should save data and existing Notes during upgrade to iOS 12.