Downgrade 3.55 to 3.41 and jailbreak ps3 fat.

[specialistas4-PSG]

Ok first of all sorry for my bad English.I have ps3 fat version 3.55.1 hour ago ps groove posted news about a way to downgrade 3.55 to 3.41.I would like to ask if i downgrade my ps3 to 3.41,is there something to jailbreak my ps3 free without buy a dongle.I would like to know if would i use backup manager with this way.thanks

[Deathnetworks]

erm yes... i think is the answer its called psfreedom but even then you need to have the right type of phone flashed with the right kind of software with the right payload its more of a faff on tbh. i have a knock off dongle that cost me £10 but i really do like the look of that E3 card reader, so if you do get a dongle i'd get that then you can stick a game or two on the SD card you can put in it.

[specialistas4-PSG]

thanks for your help!!One other question,if i use 3.55 geohot cfw,should i use lv2 patch or there is no need to patch the kernel?
when i patch a game with castelvania method how can i run it on ps3 via external Hdd?sorry for my noob questions