I've got a PSP 3000, with custom firmware 5.03-Prome3. I found these files in my PSP root directory and wonder what's their usage?

  • en_recovery.txt
  • usersystemlib620.prx
  • This is unofficial/modded firmware for the PSP. The question is allowed, as per this thread on meta, and I think it should probably be tagged 'mods' although the description for 'mods' doesn't include console modifications at this point. see: meta.gaming.stackexchange.com/questions/258/…
    – agent86
    Nov 20, 2011 at 18:13

1 Answer 1


en_recovery.txt is the text for a custom firmware's recovery menu; usersystemlib620.prx seems to be related to using CFW to play Kingdom Hearts: Birth By Sleep.

They may be safe to delete if you don't run CFW, but as always, keep a backup of your files handy just in case.

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