Note 5 .img files

I have a question about being able to modifiy .img files for the Note 5 i have tried sgs2toext4 and ext4 extracter and i still can figure out how to read any of these files. Im hoping to be able to remove the bloatware for the note 5 and reflash the system.img without those apps.

Alternatively would an update.zip that removes those apps be viable with the note5? i know we wont have root but these two methods may be able to get rid of bloatware atleast right?