Default [Q] Can't enable mass storage on SCH-i435 because of Verizon software?

I have a rooted phone and I downloaded the Mass Storage Enabler from the Play Store.

However, when I press "mass storage mode" on my Verizon S4 Mini (SCH-i435), it just connects as an installer, and shows up as a drive with only 12MB of space with the Verizon software upgrade assistant software I've already installed on my PC. Is there any way to remove this crap so I can truly use the drive as a mass storage device?