(adsbygoogle = window.adsbygoogle || []).push({}); i have updated to 3.42 but i want to know if i buy a PSjailbreak can i still host lobbies or can i not now that i have updated

Not with your ps3 (the one that has been updated to FW 3.41).

You will need a new ps3 that is on 3.41 because you are not able to downgrade.

Hope I helped