Причем в источнике написано так:
How do I Toggle QA Flag?
When on a CFW download & install >>> QA TOGGLER (Standalone), (Note: Will just show a black screen then reboot the PS3 and returns to xmb. A Restart is RequiredA fterwards though or cfw syscalls will be disabled (meaning your CFW patches will be disabled until the next boot, so a reboot is required after the Toggler exits back to the XMB.) Additional Info about Q/A flag can be seen here ( & also @
PS3Devwiki)
Should i use the "999 Downgrader" vs "Toggle QA" to install a different CFW?
No, installing the "999 downgrader" PUP on a 3.56 minver console,
it will brick the console, simply just Toggle the Q/A Flag and play itsafe and is so simple to move from CFW versions (up and down from version to version).
krekx, я в курсе