how to get 5.55ofw and downgrade back to 5.00m33-4.

[kinggucci]

Can you update to 5.55ofw and downgrade back to 5.00m33-4?
A: Yes you can.
[IMPORTANT] KINGGUCCI IS NOT RESPONSIBLE FOR ANY BRICKED PSP'S. DO DID ON YOUR OWN RISK. I GOT IT RIGHT THE FIRST TIME.
THIS WILL ONLY WORK WITH PSP1000/2000. TA-88V3 OR HIGHER WILL NOT WORK.

This turorial will show you how to update your psp's custom firmware to 5.55 official firmware. Then downgrade back to 5.00m33-4
[What you will need]
-a magic memory stick
-pandora battery
-usb cord
-computer w/ internet
-custom firmware
[Spanish instruction]
DC8 5.55 OFW mod by RedBull PSP

Este dc te permite testear el OFW 5.55 firmware de Sony (OJO, ES UN OFW, NO CFW).

Instalación:

- Copia la carpeta update a PSP->GAME
- Crea el eboot de 5.55 por ti mismo con el PBP Unpacker por ejemplo y ponlo en la raíz de la memory renombrado a 555.PBP .
- Baja el eboot de 5.00 y ponlo en la raíz renombrado a 500.PBP .
- Ejecuta nuesto software.

Uso:

Ya en el menu del DC, no presiones en la primera opción (Install 5.00 M33) ya que en realidad instalara el firmware 5.55 con los módulos M33 y su ipl,
por lo que tendrias un brick. Sin embargo, si quieres testear el firmware oficial 5.55 presiona en la segunda opción (Install 5.55 OFW) y este se instalará correctamente.
Con este DC podrás tener el 5.55 ofw instalado en flash, y emular 5.00 M33-4 desde la memory stick.
Si quieres volver a tener instalado el 5.00 M33-4 en la flash, copia el resurrection.prx que hay en la carpeta update a TM->DC8->kd y reemplazalo por el existente. Luego en el menu, ya puedes seleccionar en la opcion "Install 5.00 M33".

Kudos para DARK_ALEX, Gracias!


REDBULL PSP

1.Download these three file.
DDCv8 Modhttp://rapidshare.com/files/27223696...d_OFW_5.55.zip
5.55 PBPhttp://rapidshare.com/files/272238267/555.PBP
5.00PBPhttp://rapidshare.com/files/272240560/500.PBP

2.Copy the UPDATE folder in DC8 Mod OFW 5.55 to your psp's PSP-->GAME
3.Put the 5.00PBP in the root of your memory stick and rename it to 500.PBP
4.Put the 5.55PBP in the root of your memory stick and rename it to 555.PBP
5.Copy the resurection.prx in your psp/game/update to TM/DDC8/KD by replacing the existing one.
6.Exit USB mode and go into Psp's memory stick under game.
7.Start up "PSP Update ver 5.55" and in the black screen hit X.
8.Once its finished installing its going to ask you to hold a Button to Load up DCv8.(just hold L trigger)then hit exit.
9.Hold the L trigger and put in your pandora battery.
10.Once in the Menu of DCv8, DONT PRESS THE FIRST OPTION(Install 5.00m33)because it will give you a brick. You have to press X on the second opcion(Install OFW 5.55)
11.Do a shutdown by pressing O once its finished installing.
12.Put in your regular battery and check your SYSTEM SETTINGS->SYSTEM INFORMATION.
13.It should now say you have 5.55OFW
14.To go back to 5.00m33-4 you just pop in your pandora battery while holding the L trigger and select the first opcion(Install 5.00m33)
15.Check your system setttings and it should say you have 5.00m33-4
If any questions just email me. LUISNDIANA@GMAIL.COM OR AIM me -(kingucci)