Backup your Game Saves and edat/rif files to a pendrive, external HDD or FTP to PC.Can be useful to take 1 or 2 dumps of you flash after a successful upgrade.Always a good idea to dump your eid_root_key.It's good practice to QA Flag your console.Turn off internet connections when updating CFW's.( Wifi and Ethernet cable.).Usually brick reports happen the first 24-48 Hours. Allow the community to conduct test as some CFW do not get proper testing and even ones that do some models can act differenly so its best to give it at least a 3 day wait. DO NOT RUSH to install a CFW / MFW Release. If you do not own a HARDWARE FLASHER or have the means to recover from a possiable brick.UN-MOUNT actual game.This really important for example, cobra systems with webMAN, because webMAN mounts last played game on boot.MAKE SURE THERE IS NO GAME DISC INSIDE THE CONSOLE.Those are all of the models you can downgrade to 3.55 with and jailbreak them.ĬECH-30#* (Slim, shiny black/grey front and no blue light indicator)GENERAL Tip's & Task to perform before a CFW Install:

VARIES FOR 25#* OWNERS, CHECK YOUR MINIMAL FIRMWARE HERE:

On the back of your console you will see CECH - #ĭown below is a list of the models that can be downgraded to 3.55 and the models that cannot be downgraded.ĬECHE0# (First model fat, chrome front, 4 USB slots)ĬECHJ0# (Fat, doesn't look much different from CECHH)ĬECHK0# (Fat, doesn't look much different from CECHH or CECHJ)ĬECHL0# (Fat, doesn't look much different from CECHH or CECHJ or CECHK)ĬECHM0# (Fat, rare PS3 so I can't provide a photo)ĬECHP0# (Fat, doesn't look much different from CECHH or CECHJ or CECHK or CECHL)ĬECH-20#* (Slim, chrome front with a blue light indicator showing that a disc is inside the console)ĬECH-21#* (Slim, identical to the CECH-20#*, almost the same)ĬECH-25#* (Slim, almost identical to CECH-20#* and CECH-21#*). To downgrade your Playstation 3 you need an E3 Flasher, but before doing so you have to make sure your console could actually be downgraded to 3.55 all different models have a different version. To jailbreak any console it MUST be on version 3.55, no other version is jailbreakable, especially the most recent version.

How to custom firmware ps3 4.78