Gran Turismo PSP can now run on 5.50 genb

From psp-hacks.com

Download:
 

5.55 & 6.00 Games Decrypter V2
 

UMDGen 4.00

 

Yoshihiro’s 5.55 & 6.00 Games Decrypter 

 

Released *Updated*

greg | September 29, 2009

Update: Problems? Yoshihiro’s Games Decrypter V2 should solve it. Give Marvel Ultimate Alliance 2 a try now. And if you’re experiencing the black screen problem, change the UMD mode. I’ve had much success using the M33 driver.

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We told ya… Now prepare yourself for absolute pandemonium… Nevermind PSP Custom Firmware 5.55 or 6.00; Yoshihiro has released his 5.55 and 6.00 Games (EBOOT.BIN) Decrypter.
In short: use this tool to decrypt the firmware 5.55 or 6.00 EBOOT.BIN from whatever [legitimately purchased UMD] game, build an ISO image using UMDGen with the decrypted EBOOT, and botta bing botta boom — you’re playing on Custom Firmware 5.50 GEN-B.
Instructions included.

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All right, all right… I picked up my copy of MotorStorm earlier today and here’s the process I took. But first let me tell you about my PSP:

• 5.50 GEN-B2
• VshMenu is [currently] disabled; I got my reasons. You can no doubt skip a couple steps if you’re using it.
• UMD Mode: M33 driver -NO UMD-
• MotorStorm (US) UMD

The steps:

1. Install 5.55 & 6.00 Games Decrypter like any other homebrew.
2. Boot into 5.50 GEN’s recovery console by holding R-TRIGGER on boot.
3. Go to Configuration -> XMB Usb Device -> change to UMD Disc.
4. Enable USB mode from the XMB; copy UMD9660.ISO to your local; open UMDGen.
5. In UMDGen open the UMD9660.ISO file.
6. Navigate to PSP_GAME/SYSDIR; highlight EBOOT.BIN; right-click -> Extract Selected…
7. Save it somewhere; boot into the recovery console again (See step 1); set the USB mode back to Memory Stick (See step 2).
8. Enable USB from the XMB again; copy the encrypted EBOOT.BIN to your memory stick root.
9. Exit out of USB mode and run the Games Decrypter app.
10. Enable USB mode one more time.
11. If you closed UMDGen, reopen it and open UMD9660.ISO; browse to PSP_GAME/SYSDIR.
12. From the newly created DECRYPTOR directory on your memory stick, drag & drop the unencrypted EBOOT.BIN to the right windowpane in UMDGen overwriting the original file.
13. Save the ISO; copy it to the ISO directory on your memory stick.
14. You’re done

If you have the .iso follow this guide:

1. Extract the EBOOT.BIN from the any ISO that you needed to run in this example its Motorstorm.iso
2. To extract it use UMDGEN, open the Motorstorm.iso from UMDGEN then extract the EBOOT.BIN from there save it somewhere that you can actually find the file usaully on the DESKTOP
3. Then connect your psp to USB MODE then copy the EBOOT.BIN file to the ROOT of your memory stick so its like (X:/EBOOT.BIN) X means thats your memory stick well it just a sample
4. Then while your in USB mode copy the DECRYTER TO YOUR PSP LIKE NORMALLY (ITS LIKE INSTALLING ANY CUSTOM FIRMWARE)
5. After you have installed the decryter run the program and it WILL NOW DECRYPT THE EBOOT.BIN FILE THAT YOU PUT ON THE ROOT OF YOUR MEMORY STICK
6. Then after its done go back to USB mode and delete the EBOOT.BIN file from your root directory of your PSP.
& After you have done that locate the FOLDER NAME DECRYPTOR inside that folder there’s the newly EBOOT.ini file that you needed and copy that EBOOT.BIN file to your desktop
7. Then after that open up UMDgen again and open up Motorstorm.iso and DRAG THE EBOOT.BIN FILE TO THE GAME AND THEN SAVE THE GAME AS .ISO
8. Then finally after you have save the game as ISO copy the new modified Motorstorm.iso to your psp then it should work %100.