Note 2 // How to reinstall factory 3.3.1 update?

[tatteredscroll]

I rooted the device running 3.3.1 with the 3.3.1 boot image using the methods posted here (much easier than I thought, I'm on Linux) and went through the process of debloating (with uninstall, not disable) and the Notes app started acting weird.

After a reboot, I can open a new or existing note and scribble in it, then if I close and try to open a new or existing note, it just sits at Loading... It doesn't ever load and only a reboot will "fix" it.

I tried a factory data reset and it's not fully resetting the device. It seems to clear a few settings and even walks me through some initial setup items, but most of my stuff is there.

I also put the original boot.img back on and uninstalled Magisk, no change.

I tried to run adb reboot recovery and also tried the power button+back button method to get into recovery, none work.

Soooo, I figured if I could just reload the entire 3.3.1 firmware from scratch I could start over and try again.

EDIT: Fortunately Universal Android Debloater was able to "restore" the uninstalled apps and everything now is back to normal, somewhat. Notes is working, but I tried a Factory Data Reset again and it's not actually resetting. My files, books, notebooks, they're still there.

I also noticed that Magisk appears to be "Installed" even after changing boot.img back and uninstalling the Magisk app, how to remove?

[Renate]

I've noticed that Onyx is pretty free with changing their formats and standards around.
Not scientific, but there are 186 classes in kReader that have "Migrat" in their name.
By rolling back you've made your scribbles/notes incompatible.

You've got an A/B device, don't you?
Are you sure that you replaced the correct slot?

Also, you can use an image tool (like my imgutil.exe) to take a peek at your boot.img and see if it's Magisk'ed.
Yeah, I know you said Linux.

[tatteredscroll]

Pretty sure I went through all the right steps and that I'm rooted. Magisk gave su root access to AFWall. Not sure if the Note2 running Android 9 has A/B and if so, how to check it or change from one to the other.

Do I need to look for partition tables and see which one was set to default?
https://source.android.com/docs/core/ota/ab

+++Note2 Root
enable USB debugging

adb devices

adb reboot bootloader

fastboot flashing unlock

fastboot flash boot your_patched_boot.img

fastboot reboot

+++

FWIW, I found a Linux version of the imgtool I pulled from GitHub and compiled...but it only offers pretty basic info. The only difference I see between each version of the image is the addition of a RAMDISK in the Magisk patched boot.img and a different ID. All the CmdLine options appear the same.