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#1 05/05/07 9:01am

JaXeRiR
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From: Teh Interwebz
Registered: 25/03/07
Posts: 1925
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PSP Demo "Doku: Let's Gakkou" has hidden things inside it!

The PSP Demo (NPJG90003) "Doku: Let's Go to School"(original: doku let's gakkou) is a demo released only in Korea, and the actual game was never released. I got my hands on this demo, but soon found out that I should have FW 3.40 to play it. I have 3.11. Well, time for some HEX Editing to get it work.

I opened the EBOOT.PBP with PBP Unpacker, and saw that it included many files. I did'nt get excited about this just yet, first I opened PARAM.SFO and edited SYSTEM_SOFTWARE from 3.40 to 2.80. Then I recompiled it, and thought that why did it have so many files?! PIC0, PIC1, and all, because when I look at the game at Game->Memory Stick it did'nt have any logo, background or music. Edited and recompiled it suddenly has a logo, background and music.

Don't know if anyone understood me, but heres the bottom line:

BOTTOM LINE: The Goku: Let's Gakkou demo downloaded directly from the net does'nt have background, logo, or music. My HEX edited version has, but the files are from inside the EBOOT.PBP file, so it's weird that they won't show up in the first place...

Why even put those pics and music inside the EBOOT to take memory space, if the game does'nt even use them?!


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#2 05/05/07 9:19am

JaXeRiR
Elite Moderator
From: Teh Interwebz
Registered: 25/03/07
Posts: 1925
Website

Re: PSP Demo "Doku: Let's Gakkou" has hidden things inside it!

UPDATE: Oh no something gone horribly wrong, and now my PSP shows all my 26 demos as NLB'07 The Show...

I have no idea what's going on, my PSP just showed MLB's background and it's music played and suddenly every demo looked the same.

Gonna try to fix this...


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#3 05/05/07 9:39am

rollinroll
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Registered: 23/10/06
Posts: 1890

Re: PSP Demo "Doku: Let's Gakkou" has hidden things inside it!

Happened to me one time. Just take a fresh n cold reboot.

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#4 05/05/07 11:03am

JaXeRiR
Elite Moderator
From: Teh Interwebz
Registered: 25/03/07
Posts: 1925
Website

Re: PSP Demo "Doku: Let's Gakkou" has hidden things inside it!

I also maybe found a way to run for example 3.40 demos from 3.11.

PSP thinks you're launching a 3.11 demo, when actually the EBOOT.PBP has DATA.PSP from 3.40 demo.

Hmm... Could this be used in downgraders...?


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