Has anyone else noticed this?
I utilised S Notes everyday and had a lot of info in there, but since the update they're gone.
Is there anyway to get them back... even the app without my old notes would be good start.
I heard this has happened on Sprint devices. Don't know who your carrier is but regardless of that try rebooting the phone a couple of times. That has fixed it for some people. If it doesn't help, try clearing the cache from recovery mode. I don't have an S4, just had heard of the Sprint S4 problem, so if that doesn't work, I'll leave it to the S4 folks here to help you out.