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...
nintendo vita rogero details battlefield manager multiman applications media 2011 x360 releases software player wiiu official release live team game skyrim modern unofficial launch firmware build announced repack showtime update hacks edition xbox beta confirmed released multiplayer trailer review halo dead hardware games duty homebrew mmcm xecuter cobra sony free warfare call online kinect list support version available updated microsoft JoelLipman.Com