Sprint never give info as far as to what serial numbers are being updated at what time, so Im hoping this will help, if you have already gotten the Kit Kat update, please comment what date you purchased your phone and where you live, maybe this will kind of give us an idea of where they are rolling the updates at. I feel like I was one of the last persons to receive the lasted Jelly Bean update, almost a month after Sprint rolled it out. Very Frustrating to just sit around everyday hoping to get the update!
Thanks for joining out post.
Please continue to be patient, you should receive your update very soon.
Sprint Social Care Team