What's these files in PSP?

Question

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

Answer

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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