i boght an old PS3 slim with rogero 3.55 CFW (i think that it was downgraded to 3.55). i have put my ps3 in recovery mode then i have updated it with the 3.55 OFW, the ps3 complete the downloading of the firmware then when it reboot the PS3 shutdown after 6 seconds.
when i restart it again it start for 6 second then it shutdown without any message on the screen and without any beep. please note that i can't enter to the recovery mode again and i don't have any dump from it.
is there any fix of method to fix it? i have a second PS3 with an ofw 4.21 can i pick up a dump to try to recover it ?