How do I extract BBM from my Z10? How do I reload it?

I want to extract and then reload the same version after I have updated my OS.

You can't extract it from your device exactly... however you can download the OS and extract it from there using Sachesi or DBBT.. just grab the debrick and the other apps needed - http://forums.crackberry.com/bb10-le...aders-1040826/