You will probably have to wait until the Hacks fully understand all aspects of the more current firmwares unfortunately. when they decrypt newer firmwares that might lead to extracting the keys for the BD player. the only other option is dumping the nand and other roms and comparing it with the decrypted firmware in existence in hopes it will lead to better understanding of how the update works on the DB player. Good luck with that little project. If we are lucky the BD drive emulator rumor in the works may lead to a cure for the Bluray Itch.