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rmb · 12-19-2006, 01:20 PM

Hi

How can I edit elf(the decryptet prx Files) files from the Sony FW?
And what for a programming language is it?
Is there every where a prx decrypter for 2.71 PRx's or higher for 1.5 or 2.71SE-C
And how can i compile a elf file to a prx?

I searched but I find nothing.

Thanks rmb

**Fanjita** · 12-20-2006, 05:56 AM

Here's a good ELF editor: http://elfyourself.com/

Slightly more serious answers:

- Grab the PSARDumper tool from http://www.noobz.eu/, it can decrypt all known firmwares (although there are problems with the new 3.03, apparently).
- You'll need a good MIPS disassembler to be able to disassemble the decrypted files into the MIPS Allegrex assembly language. Plus you'll want a good working knowledge of MIPS to understand it.
- To edit PRXs, you'll need a VERY good knowledge of MIPS asm, and a good hex editor. But you'd have the problem of re-encrypting them for that to be useful, and no-one but Sony is able to do that.
- I believe PRXTool can convert ELF->PRX, but it sounds like you don't know enough for that to actually be useful to you.

**gameo** · 12-20-2006, 06:08 AM

Wow, i didn't knew 3.03 is out, can it be devhooked like 3.02?

**Anti-QuickJay** · 12-20-2006, 07:19 AM

No, As Fanjita said, It has problems with the PSARDumper, I think like 3 files dont decrypt.

eldiablov · 12-20-2006, 09:30 AM

2 files dont decrypt actually

rmb · 12-20-2006, 09:58 AM

Thanks to all.

I'll check it out.

12-19-2006, 01:20 PM	#1
rmb Join Date: Dec 2006 Posts: 6 Trader Feedback: 0	PRX/Elf Editor Hi How can I edit elf(the decryptet prx Files) files from the Sony FW? And what for a programming language is it? Is there every where a prx decrypter for 2.71 PRx's or higher for 1.5 or 2.71SE-C And how can i compile a elf file to a prx? I searched but I find nothing. Thanks rmb

12-20-2006, 05:56 AM	#2
Fanjita Muppet Magnet Join Date: Sep 2005 Location: Edinburgh, UK Posts: 2,388 Trader Feedback: 0	Here's a good ELF editor: http://elfyourself.com/ Slightly more serious answers: - Grab the PSARDumper tool from http://www.noobz.eu/, it can decrypt all known firmwares (although there are problems with the new 3.03, apparently). - You'll need a good MIPS disassembler to be able to disassemble the decrypted files into the MIPS Allegrex assembly language. Plus you'll want a good working knowledge of MIPS to understand it. - To edit PRXs, you'll need a VERY good knowledge of MIPS asm, and a good hex editor. But you'd have the problem of re-encrypting them for that to be useful, and no-one but Sony is able to do that. - I believe PRXTool can convert ELF->PRX, but it sounds like you don't know enough for that to actually be useful to you. __________________ Using firmware v2.00-v3.50? Open up a whole world of homebrew here The PSP Homebrew Database needs YOU! Your ISP may be illegally wiretapping all your web activity. Stop Phorm Now! Visiting the Edinburgh Festivals? Get practical advice from experts.

12-20-2006, 06:08 AM	#3
gameo Join Date: Sep 2006 Location: Denmark Posts: 664 Trader Feedback: 0	Wow, i didn't knew 3.03 is out, can it be devhooked like 3.02? __________________ My PSP Projects: [B]___________________[/B] None.

12-20-2006, 07:19 AM	#4
Anti-QuickJay lol Join Date: Aug 2006 Real First Name: Robert Location: Whittier, CA Just Played: Madden 10 Posts: 5,791 Trader Feedback: 0	No, As Fanjita said, It has problems with the PSARDumper, I think like 3 files dont decrypt.

12-20-2006, 09:30 AM	#5
eldiablov Banned for LIFE Join Date: Oct 2006 Location: East London, England Posts: 2 Trader Feedback: 0	2 files dont decrypt actually

12-20-2006, 09:58 AM	#6
rmb Join Date: Dec 2006 Posts: 6 Trader Feedback: 0	Thanks to all. I'll check it out.

QJ.net Game Discussion - PSP, Xbox, Wii, PS3, PSP Homebrew, and PSP Guides

PRX/Elf Editor