Originally posted by SyGnUs
Try doing it faster it worked for me, and you must have spoof on your ps3 so firmware says either 4.20 or 9.99. Or you can get rogeros v3 or v4 theyre pre-spoofed.
If going from 3.55 ps3 to 4.20/4.21 u dont need a spoofer installed. Just follow the data transfer instructions with internet disabled. You must go thru process without too much hesitation or ur window will timeout. Make sure both are connected via ethernet together and both are viewable on a tv to see the instructions and have patience.