[Sprint Samsung Galaxy S 4 Original Android Develop] FNetV1:
I have installed this rom to my father's Galaxy S4 Sprint Triband phone to give him a much needed upgrade from KitKat he was running originally. I made sure to do a full nandroid backup before just in case.

So far everything is working. Data works, can make and receive calls, can send and receive text messages and camera works even to take videos too. WiFi works too. Absolutely nothing is forcequitting, its like rock solid for now on the tests I have done.

My only gripe is that my father has lots, and I mean LOTS of notes he has been taking through all these years using the S Notes app, while I also made sure to backup that using TitaniumBackup ROOT before doing anything, I tried restoring it through Titanium Backup after rooting this nougat rom by installing the latest SuperSU v2.82 from the developer's XDA thread. Titanium just stayed restoring perpetually and didn't past. Next I tried flashing S Memo version 2.zip that was provided by a user in 2014 that says that works for all android phones. I noticed users were saying that it was working even on lollipop (being an app from kitkat), so I took it that if its working on lollipop that it should also work for nougat, so I flashed that using TWRP, then restarted the phone and nothing. Then I flashed CWM recovery (because that .zip was made when CWM was the most used recovery and the OP specifically mentions CWM to flash it) and I re-flashed that zip using CWM and again nothing. the S Memo app appears on my phone as "broken".

Next, I have just found a .zip that a user uploaded taken from a Galaxy S5 lollipop or marshmallow containing all samsung apps including S Memo in TWRP flashable format, I haven't flashed that yet, dont know if its going to break something, users there have only installed it into a touchwiz rom with mixed results, none has installed it into an AOSP rom and I dont want to risk breaking something by flashing that here and I have ran out of most space on my SD card for further NANDROID backups. So, is there any apps that anyone can recommend me to get Samsung Notes working again under this Nougat rom? I absolutely need these notes to be available for my father again, backing them one by one would prove to be tortuous there's so many notes there. I wish there were an app that exported them to KEEPS automatically like an S Memo to KEEPS converter something like that. Currently all his S Notes are safely stored on his Google Drive account (I exported them to GDrive from S Notes itself under KitKat Stock before I did anything as part of my backup processes)

EDIT:

Another issue I forgot to mention is that upon each reboot I get a:

"Activating Cellular Service" pop up "This may take up to 5 minutes..." which I am able to skip by pressing the back key and then everything is normal and works great, data works great. I would like to know how I can get rid of this screen, it could prove to be an annoyance for my father. I have tried RootAppDeleter but unlike on previous android versions where I could just disable "HandsFreeActivation" in here I see no app's name that sounds anything remotely similar to that of a "cellular activation" based app. Since I need no such app to be starting automatically on each reboot I would like to disable it, would be great to know the name of such app/apk so that I can disable it so that popup is no more.