The Firmware Downloader is a application to download Firmwares (OFW & CFW) directly onto the PSP. It will copy the OFW to ms0:/*versionnumber*.PBP or ms0:/PSP/GAME/UPDATE/*versionnumber*.PBP or ms0:/PSP/GAME/UPDATE/EBOOT.PBP, whatever you prefer.

The installation is quite simple, copy the content of the MS_ROOT folder to your memorystick and start the “Firmware Downloader” in your Game -> Memorystick menu.

Now you can connect to your WLAN Network and check for updates of the app. Then you can choose what kind of firmware (ofw or cfw) you want to download and which version. Press X to search for the firmware you have selected. If it’s avaible the download will start and when it’s complete the app will extract and copy all files to the right directory.

Use it at your own risk!

http://forums.qj.net/showthread.php?t=142890