motasim masood, I'm glad to hear all went well. I am thinking of having another go at upgrading. What camera app do you use in lollipop and is the quality of the camera changed at all with a change from Kit Kat touchwiz to lollipop cm12?! And, I assume titanium or helium would be able to bring back the app data, even though it's across to a different rom? I'm a little rusty on the rom switching, as I used to do it all the time on my nexus, and now I have a new baby, so, I have less time to do everything and I want to be sure the camera is working well before I flash away! Plus my phone has been slowing and I put a new and faster SD card, which is not performing like I expect.... So, I was waiting for the moment to reset anyway!
Thanks ahead for the help!