keep ur iphone backup when go back from 1.1.3

first i have an important tip for you guys

DO NOT KEEP YOUR IPSW firmware files in one folder because if you click on 1.1.3 instead of 1.1.2 ur iphone will not recover till 1.1.4

if you was on 1.1.3 and then experienced some issue and want to goback to 1.1.1 and do whole process again you may lost ur backup in this step

when you downgraded to 1.1.1 and OKtoPrep installed now it’s time to update to 1.1.2 but itunes want to choose ur last backup but your latest bnackup taken on 1.1.3 and iTunes give you an error. do not setup as new iphone JUST hold power and home button while your iphone boots in DFU mode then use iBricker 0.91 to boot ur iphone again

open itunes again now you are able to press shift+update