Hey sorry didn't realize I sent both!
I hear you on the warranty. My brother in law just opened a phone repair shop, so hopefully I'm covered! :)
Update: My phone is still fine, using it now! and if I come across how to unroot, I'll post it here.
In case you're interested, I followed this guide with my S4 mini SGH-I257M.
[SGH-i257m][ROOT] A Newbs Guide To Rooting & Modding the CANADIAN S4 Mini - xda-developers
And then downloaded Titanium Backup free from the google play store to debloat/uninstall unwanted apps.
I'm actually more...