[raghu9845454534]

My Blackberry 7290 OS was corrupted, can any one help that how it was solves.

[jsconyers]

Welcome to the forums.

go here: https://www.blackberry.com/Downloads...C068A355BBA31A

Select the 7290 from the list and download the software onto your PC.

Then back up your data using Desktop Manager.

Then wipe the device using JL_Cmder.
How do I wipe the BlackBerry using Jl Cmder? - BlackBerryFAQ

Then load your OS:

How do I upgrade the OS on my BlackBerry? - BlackBerryFAQ

What makes you think your OS is corrupt?