Originally posted by Cyb3r
Try this method:
Open MultiMan then start your FTP client and navigate to /dev_flash/sys/external, in the other window of your FTP is your PC explorer so navigate to C:\Users\Cyber\AppData\Local\SN Systems\ProDG Debugger for PS3\flash_files\0404063e\ change Cyber to your username, in your PC explorer window press CTRL+A to select all the files then drag and drop them over to your PS3.
Then try to connect and attach again.