I had just started playing Assassin's Creed Brotherhood using Hermes v4b and Gaia. The PS3 locked up.
Now everytime I boot, jailbroken or not the PS3 locks up almost immediately after I select the user.
I have tried. Rebooting. Removing cables. I unplugged my router and it didn't reboot. However, all icons under game just sat and spun for several minutes and never resolved into icons.
I tried reflashing the PS3 to 3.41 and now it locks up after login whether my router is plugged in or not.