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Decrypt PGD filename
#8
My freind tell me a complex instruction and a long story.
Again hope not transate wrong.

Situation:
1:
On game AKB 1/149 Renai Sousenkyou which has 2 disc.
The game request install disc 2 first , then play in disc 1.
JPCSP does not support installation.It directly prompted the end of the installation, in fact, nothing to install. Can not install then no chance to play.The situation do not solve in real psp.
Many people can not be installed in real psp, even the installation is done,it is not sure 100% can play.

2:
Since we can not install, then think of a way to extract from the already installed games of real psp 's installation data, and see if we can use on the computer inside.Next, try this installation package in JPCSP.

3:
After many people test, JPCSP can not successfully to read the psp 's installation package. Then had to think of a way to get the installation package can be used by JPCSP.

4:
Installed file is placed in ms0:\PSP\SAVEDATA\NPJH50654DATA inside, a total of six files are
ALLD2.APK (1,592,554 KB)
FSD2.APK (32,491 KB)
PACK.IDX (3,722 KB)
PARAM.SFO
PIC1.PNG
ICON0.PNG
The in disc 2 can find a file of the same name, six files can be extracted using UMDGen.exe.

5:
Use UMDGen.exe from disc 2 extracted six files into the JPCSP to ms0\PSP\SAVEDATA\NPJH50654DATA inside, run JPCSP.
edit:JPCSP rev is 2951 windows-amd64


6:
After run the JPCSP, it will quietly to do PGD file decryption, without prompting, screen remain blank.
Tmp\NPJH50654\PGD\File-303174162 find the crack out PGDfile.raw.decrypted (3,664 KB). JPCSP decrypt a PGD file immediately under a PGD file decryption After about a half an hour to decrypt to complete. PGDfile.raw.decrypted larger, into 1,568,035 KB and installation data read failure prompted (1.png)
Turn off the JPCSP , get log1.

7:
Can guess from the size of PGDfile.raw.decrypted is decrypted by ALLD2.APK, then rename the PGDfile.raw.decrypted ALLD2.APK, Cut to ms0\PSP\SAVEDATA\ NPJH50654DATA, Replace the original ALLD2.APK

8:
Re-run JPCSP, it will automatically abort, turn off the simulator, get log2. In tmp\NPJH50654\PGD\File-303174162 inside appeared 39,991 KB PGDfile.raw.decrypted, to rename this to PGDfile.raw.decrypted FSD2.APK. Cut to to ms0\PSP\SAVEDATA\NPJH50654DATA. Replace the original FSD2.APK

9:
Run JPCSP again, this finally be able to enter the game normally. Turn off the JPCSP get log3. In tmp\NPJH50654\PGD\File-303174162 inside appeared a 3,664 KB PGDfile.raw.decrypted, rename this PGDfile.raw.decrypted for PACK.IDX. Cut to ms0\PSP\SAVEDATA\NPJH50654DATA. Replace the original PACK.IDX
On such JPCSP can install package.

10:
Last again run JPCSP, the game can be normal operation, turn off the JPCSP to get log4


Attached Files Thumbnail(s)
   

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Messages In This Thread
RE: Decrypt PGD filename - by Zekro - 12-30-2012, 01:41 PM
Decrypt PGD filename - by sum2012 - 12-28-2012, 05:36 PM
RE: Decrypt PGD filename - by gid15 - 12-28-2012, 05:41 PM
RE: Decrypt PGD filename - by sum2012 - 12-28-2012, 06:03 PM
RE: Decrypt PGD filename - by gid15 - 12-28-2012, 07:41 PM
RE: Decrypt PGD filename - by sum2012 - 12-29-2012, 05:15 PM
RE: Decrypt PGD filename - by gid15 - 12-29-2012, 08:09 PM
RE: Decrypt PGD filename - by sum2012 - 12-29-2012, 11:23 PM
RE: Decrypt PGD filename - by gid15 - 12-30-2012, 06:54 AM
RE: Decrypt PGD filename - by sum2012 - 12-30-2012, 11:59 AM
RE: Decrypt PGD filename - by ValentineMeikin20xx - 01-14-2013, 08:18 PM

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