- Downgrading back to 3.55 is always possible using the following steps :
- Download the Downgrader PUP ---> Downgrader PUP mirror ---> Downgrader PUP
...Size 176MB (184,595,263 bytes) MD5: 49d80e07fc1f5ca1b0840e02e94635db
- Rename the downloaded file to "PS3UPDAT.PUP" and put it on your USB in: "USB\PS3\UPDATE\PS3UPDAT.PUP"
- While on Rogero CFW4.30, go to System Update from XMB and install the Downgrader PUP.
- After the Downgrader PUP installs you'll be on a hybrid CFW3.55 that will still shows ver4.21/4.30 from system settings.
- Enable QA flag by following these steps: