Mine says Failed as well... probably something on Sprints end as I know for a FACT that mine has worked since being rooted.
Typos or odd wording??? I blame Swype for the Swypo's!
In use: (2) Nexus 4, (1) Nexus 7, (1) Galaxy Tab 10.1
Recently retired: (2) Droid Razr, (2) Droid Charge, (1) Samsung Epic 4G, (1) HTC Evo, (1) HTC Hero