first of all i want to say that i only used tools which are not made by me, i just mix them. so lets begin:
1. you need to download Recovery "recovery Tool Apple Device" download here:
recovery.rar - 4shared.com - online file sharing and storage - download
probably all of you know how it works so i will skip
2. go to colation /mnt2/mobile/Library/Preferences and overwrite this file:
disable.rar - 4shared.com - online file sharing and storage - download
restart your iphone and it will be in recovery mod use recboot and it's done, no disable on screen.
3. use geko to reed forgotten passcode.