(adsbygoogle = window.adsbygoogle || []).push({}); can i put at patch.ff on 3.41 upgrade to 3.50 and play?

yes but i would test your patch to see if it works and make multipal backups of your ps3 with different patchs as you wont be able to go back to that fw now 3.55 was released and unless you find a 3.50 file that is a 3.50 you cant connect to online but anyway your question is yes you can but i would back up some patch's first