Well I've never heard about that, but as it is stated before "every GDFS is unique for every phone set as they have unique information regarding the IMEI and customizations". So if you have used a different gdfs, I don't think it is possible to save your phone. You could ask your friend to help you if he knows how to fix it. Or you could start a new thread where your asking if it is possible to save a DB2010 phone which has been flashed with a different gdfs. You could also search the web and see if you find any solutions in other forums.