Originally posted by DeNo
Once you've got back to 3.55 let me know and ill help you from there
You will need the Rogero 999 Downgrader for that.
Make sure you have QA Enabled
Enable QA
Download the Rebug QA_Toggle package from here ---> toggle_qa.pkg
Put the "toggle_qa.pkg" on USB and Install it on the PS3.
Run the "Rebug Toggle QA" from XMB, the screen will go Black and you will see HDD Led activity then if all went fine you will hear 2 or 3 Beeps and the PS3 will Restart back to XMB.
If you want to make sure QA flag was set, go to "Network Settings" then apply the following key combo (all at the same time):
should i do this before istalling the pup that gets me down to 3.55?