This tool let you install the firmware 5.50 GEN-B2 Full directly without any patch
and on any psp so PSP fat and psp slim TA-79 > TA-88V2 from any custom firmware or kernel exploit .
for the firmware 5.50 put your 5.50 updater on root of your memory stick renamed 550.PBP .
you can use it to restore any official firmware too on slim and fat .
you can use it to install install any TT's firmware on fat psp you need to put your eboot.pbp
on roots of your memory stick like that X:/EBOOT.PBP .
you can also converter your old DC8 magic memorystick in shiny 5.50GEN B-2.
just select in the XGEN option Install XGEN pandora and restart your psp dont forget
to put the 5.50 eboot.pbp updater on root of your ms renamed in 550.pbp.