yes i just did this 2 days ago. althought to do it i first had to flash 2.2 then rolo into a daily build then flash with the .ucl (i dont know if that extention is right) but im sort of new so i dont know if you can just flash a daily build without flashing to 2.2 first.. i tried but for some reason 2.2 kept telling me that my .ucl file was for a different version.