Thanks Meter 9
Join Date: Mar 2012
Location: Sremska Mitrovica / Novi Sad
Just as everyone else says, it might be better to flash using Odin, or CWM. If your phone is like mine, it might be a while untill you get your update. I bought mine through my carrier, Telenor, and the only update I still have as an option is GB 2.3.4.
Good thing about flashing is you can always revert to the stock ROM you had using Nandroid backup, and even flash official stock ROM which you can find in I9100 forums here on XDA.
Just follow the search...