i want to change my phone from 6.09 to 5.73 but the phone does not allow this falsh as it is a older version i used pheonix 2006 to upgrade version 5.73 to 6.09 now i want to go back to 5.73 as many apps do not work fine in 6.09 as they are no compatible in this version i flashed usin dku2 and cracks any help