its not a new method.. have figured it out at the day naehrwert has posted his little goodie ;-) see here
but as mentioned by many users here and in other forums... using FSM in the process is high risk for bricking...
i bricked mine (its a NAND one), and i got a JIG (AT90USBKey with PSGradehex programmed) but no way to awake it... have to use hardware-flasher..
no way but the hard way..
FAT PS3 / CECHC04 / COK-002 / 256 MB NAND
SLIM PS3 CECH2004 / DYN-001 / 16MB NOR with E3