[RELEASE] Savegame-Deemer - Save and Load of *unencrypted* savedata (from any game)

[Hellcat]

Savegame-Deemer
Save and Load of unencrypted savedata
(from any game)
********** + ********** + **********
a CFW plugin by ---==> HELLCAT <==---

Huh? Back in the 1.50 days we could use tools like "Shines Savedata Tool" to dump/decrypt and resave gamesaves.... and edit them inbetween Since FW 2.00 a few more security measures got put into the FW to prevent messing around with the savedata. Well, while trying something different - but related - I created this CFW plugin. This plugin makes the PSP to save the savedata in unencrypted from alongside the normal, encrypted data, and also loads it back in on savedata load operations.

OK, here's the thing:
While this plugin is active, on every save operation, there's a second set of savedata written to
/PSP/SAVEPLAIN
on your memstick.
The folder layout in there is pretty similar to the one in the original /PSP/SAVEDATA folder, only that everthing in here is plain and unencrypted.

You can then edit your heart out on your savedata, on the next load the unencrypted (and maybe edited ) version will be loaded instead of the normal/encrypted one from /PSP/SAVEDATA.

If no unencrypted version exists for a savegame, the normal one will be used as if nothing ever happened.

More details can be found in the readme.
Read it, especially when having trouble, as there are a few "confuseness" causing things are mentioned in there....

Finally we're back at good ol' gamesave cheating


UPDATE 19.02.2008:
v1.10

• Did some major internal changes due to huge compatibility issues when actually running/using the plugin.
  Should be way more stable now, hopefully running on 100% (or at least 99.9% ) of the games.
  Also it's only one .PRX now, not splitted in two anymore, since the main .PRX is now a native kernel mode one.
• The usual minor bug fixes
• Added a new feature to patch/overwrite the SFO params/info on save (see readme)

How to get it.... /// - [ D*O*W*N*L*O*A*D - v1.10 ] - /// (Source is available as seperate download, URL is given in the readme....)

[mattownsurealgoood]

Hm, sounds pretty sweet.

How do you edit and what do you edit for?

[Hellcat]

How: Hexeditor in most cases

What for: Money, Medals, Unlocks, whatever the game saves in there....
(maybe even exploits....)

[Coolj]

Cool stuff,nice job Hellcat.Where is your dev statz?

[placo23]

Wow that sounds sweet! Is there any way to find out exactly what to edit? As for example, if I wanted to unlock a car when playing burnout dominator?

[Hellcat]

Originally Posted by placo23

Wow that sounds sweet! Is there any way to find out exactly what to edit? As for example, if I wanted to unlock a car when playing burnout dominator?

Closely inspect the data and find out its structure....

I usually compare two or more versions to see where the stuff is located that I want to modify and start trial-and-error like messing around until I get something

[Judas]

Here's what I would do. Say you wanted to buy another car in Burnout. I'd race and save up enough money to buy another car. Save the game. Then, buy the car, and do nothing else. Then, save the game in a different slot. Then you can compare the two, to see where the new car you bought is.

[Torch]

The burnout saves are different, atleast on the PS2. It just tracked how many races you completed, not the cars unlocked. More races completed = car gets unlocked on next load. And the PS2 version had checksums which had to be recalculated.

[Mr305]

I thought most games used internal checksum APART from being encrypted