After Testing with some bricked Slim consoles ( from updating to CFW4.21 ) with different friends and testers around the world,
I can confirm that Bricked consoles can be recovered back to CFW3.55 even if you didn't have a NOR Dump/Backup .
1- a Hardware Flasher so you can read/write to the PS3 NOR flash
2- A Dongle with PSgrade payload (any old jailbreak dongle + PSGrade hex will do) used to Enter Factory Service Mode (FSM)
3- Rogero CEX3.55 v3.7 PUP
Recovery Procedure :
1- Dump the current NOR Flash of the bricked PS3 at least 3 times using a hardware flasher (Progskeet / E3 / TEENSY++)
2- Verify that it is properly dumped and you have a valid dump ready to be patched with the downgrade patches.
3- Patch the dump using Rogero PS3 NOR Auto Patcher or any other Program available.
3- Flash the Patched Dump back into the PS3 NOR using the Hardware flasher.
4- From this point you can continue as a normal Downgrade Procedure by entering Factory Service Mode using the dongle and Flashing Rogero CEX-3.55 v3.7 from the USB stick.
Maybe i´m saying something wrong, but can´t you make a way to red screen error to force auto ofw restore? I remember that one time ago, after a vacation with long time without use, my ps3 reverse to ofw 3.50...
media review official halo cobra build version software updated call kinect team edition online showtime announced beta update available launch warfare trailer live releases vita rogero skyrim xecuter multiman duty player mmcm xbox games release released firmware wiiu 2011 list modern nintendo x360 homebrew sony multiplayer dead unofficial free hardware applications battlefield game manager confirmed support hacks microsoft repack details JoelLipman.Com