Thanks Meter 6
Join Date: Sep 2009
Location: Somewhere in Southern California
AFAIK, you need stock recovery and any changes made to the /system/ folder have to be undone. Rooting installs a superuser apk to your /system/apps/ as well as su to system/bin/. Also, if you installed busybox, you have a whole mess of other binaries installed. Basically, you need to undo any changes that you made anywhere in the /system/ folder.
One more thing...if you de-bloated, you have to re-bloat because almost all of that bloat lived in /system/app/.