(adsbygoogle = window.adsbygoogle || []).push({}); I'm currently on ps3 firmware 3.55 and I'm trying to go on mw2 on 1.11 so that i can unlock everything on my account before i update to 1.12, but it does not sign in. any suggestions?

sorry bro, but you can't it can't use to different proxy servers at the same time

just use mossy's patch blocker

delete the default mp and go on bypass servers, then do it, delete patch then reinstall it on 1.12

Just use rebug's 3.60 spoofer and then you can bypass the patch and still be on PSN.

If you are still on 1.11 this will work but I do find the spoofer unreliable some don't. Also in conjunction with this you can then use the patch blocker which will keep you on 1.11 but trying to find games is a pest. But if all you want is to prestige and unlock everything then go for it! It works did something like this myself this morning except I had to downgrade back to 1.11!