Always download from trusted sources – corrupted or fake PUPs can brick your console.
: Navigate to Settings > System Update > Update via Storage Media on your PS3 dashboard. ps3updat pup
Installing CFW requires a compatible PS3 model (mostly early Fat and some Slim models). Installing the wrong file can brick your console. Always download from trusted sources – corrupted or
Modified firmware, such as Kmeaw or Rebug, that allows for custom features, game backups, and homebrew applications. such as Kmeaw or Rebug
: Re-download the file from the Official PlayStation Support Site if you suspect a bad file. If you'd like, I can help you with: Finding the latest official firmware version.
: Create a folder named PS3 on the root of your storage device.