If i update to CFW 3.55 can i still use usb jailbreak ? And can i downgrade to 3.41 ? And can i play game as normal as when PS3 on 3.41 or i have to download eboot fixed for CFW 3.55 ? At last which CFW 3.55 is suit for my PS3 60G CECHA12 hongkong version ?
You have to use Kameaw 3.55 CFW instead of Waninkoko to avoid a brick of your console. And no, you can't use PS3Jailbreak if you are on 3.55, but you don't need it, because the CFW do everything what the Jailbreak dongle does.