[rga1984]

What does the third set of numbers in an OS version is about?
4.5.(77)

[jamieschildroth]

it's the amount of times that the OS has been compiled and built.

[jeffh]

Verizon's OS for the 8830 went from 4.2.2.176 to 4.2.2.196. The change added support for 8GB microSD cards, among other minor updates. If your explanation is correct, I would have thought the 3rd number would have changed. Unless the capability was always there, and they didn't have to write any new code to enable it.