iBeacon Proximity issue with iPhone 5S

Question

I am working on iBeacon app and it works fine for iPhone 5. I am checking if Proximity is 1, 2 or 3. But with iPhone 5S even though beacon is far i am getting Proximity as 1 and rssi is mostly less than -60.

Has anyone else faced this issue, what is the difference in bluetooth for iPhone 5 and 5S?

Thanks

Answer 1

So finally after spending a lot of time, i figured out that it's SDK bug in iOS 7.0.x if you have iPhone 5S. I installed iOS 7.1 Beta 5 in iPhone 5S and now proximity is not jumping randomly, its more accurate.

Answer 2

I found same issue, and then restart iPhone5S, problem solved.