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I see. Thanks for the help. :)

Let's say I have a decrypted/decompressed KD file from a firmware newer than mine. If I copy this KD file into my flash as a renamed file (xxx_550.prx), then added the file into the *editable* BTCNFs, would it like conflict with the other (older version) PRX that's already there?

Sorry about that, then.

In any case, I'll look into PSARDumper.

It's probably the decryption key that's missing, then.

Hi. I'm a newbie in PSP development/programming. I'm interested in learning on how EBOOT.BINs are decrypted, or how PRXDecrypter (by jas0nuk) does its decryption routines. I'm looking into decrypting newer 5.55 EBOOTs. Can anyone help? Was PRXDecrypter's source code (preferrably for 2.0) ever releas...