[swifty]

I have just moved from my 9900 and there are stickies in that forum with links to vendors' OP systems. How do I find this for the BB10 software ?

BTW I am on a Z30 if that makes any difference ?

[NJBlackBerry]

They don't have them anymore. The carriers push out what they decide they want to.
There are sites where you can download the various versions. I suggest you Google "Z30 Download" and see what comes up. 10.2 is the latest. There are leaks for unsupported versions of 10.3

Good luck!

[knottyrope]

Sachesi is easy for non destructive OS update or you can use auto loader after a backup

links here on how to do it
BlackBerry® 10 OS Device Software - BlackBerry Support Community Forums