I would like to downgrade to Gingerbread 2.3.5 after updating from ICS through Kies couple days ago,As Ice Cream Sandwich is a complete failure on S2 there nothing special,Face-unlock: Too long time before the camera opens., it quicker just unlock with your finger,interface is the same, Battery seem to suck more juice only last day even though i got Genuine Samsung Extended Battery Kit for Galaxy S2 - 2000mAh where GB last 3 day plus dodgey lockscreen and etc the only best bit is in Setting. ICS and Samsung deffo need more work to it.
So would like to no how to go back to GB 2.3.5?
Im on 3UK here detail of GB on my phone before ics
PS i done google search and most links are dead on here aswell.