Rogero 4.21 IMPORTANT INFORMATION
I have a CECHL01 fat PS3 running Rogero 3.7A 3.55 CFW. It has been downgraded, so I did a syscon reset/QA flag, restarted, made a NOR backup, and installed Rogero 3.8 4.21 CFW through recovery mode.
I did not brick. HOWEVER, none of my homebrew will run, and the install package option is completely gone. I went back and verified that I did indeed install the correct .pup, so something is going on that is removing the ability to install packages from the XMB.
I'll post here with more information. I am now attempting to downgrade via the software method on the front page with the 4.25to3.55 firmware.
EDIT: Shift to 4.25to3.55.pup DID NOT WORK FROM XMB, worked successfully in recovery. Trying to get back to 3.55 now.
EDIT2: System updated to OFW via disk instead of pulling USB update; console is stuck 4.21 OFW.