Thanks I'll give it a shot again. Wish me luck
UPDATE: So it still doesn't work, I've tried using adb sideload with no luck either. Here's what it says:
set_metadata_recursive: some changes failed
E: Error executing updater binary in zip '/sdcard/'
Error flashing zip '/sdcard/M7WLVCOO.zip'
Also when rebooting in recovery it says my device is not rooted (it was prior to this) and now its asking to install SuperSU, but when I reboot, of course it doesn't install it since I have no OS. How do I reroot with only twrp recovery?
Any idea what this means?