Downgrading a PSP for the first time

Discussion in 'PSP - Hacking & Homebrew' started by jimmy j, Jul 7, 2007.

  1. jimmy j
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    jimmy j Awesome for hire.

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    A friend asked me to have a crack at downgrading her PSP. I've flashed DS phat before, and I used to softmod a lot of xbox consoles, but I've never done PSP.

    What tools/software will I need? (I want darkalex fw installed)
    How do I check the current firmware version? (its a pink PSP, she thinks its 2.80)
    What emulators should I get? (we want MAME, genesis, gba, SNES, N64, neo geo, xbox360* & ps1)

    *j/k [​IMG]




    A step-by-step would be most appreciated, my thanks in advance [​IMG]
     


  2. chuckstudios

    chuckstudios Putting the pro in procrastination

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    To check firmware, you go to Settings -> System Settings -> System Information

    How you're going to get it to 3.40 OE-A depends on what version it is in that menu.
     
  3. Nenyana

    Nenyana Advanced Member

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    To check the firmware version go to System Settings and then System information. To downgrade you will need an old (unpatched) copy of GTA Liberty City Stories or Lumines UMD. Without either of these you will not be able to downgrade.

    If you have firmware at 3.03 or below you can use the GTA downgrader but if your firmware is higher than this then you will need Lumines (after upgrading to 3.50 if required).

    It all depends on what firmware version you have and Motherboard type but I do think the 3.50 downgrader that uses Lumines is the easiest and it detects your Motherboard type too (used that downgrader 3-4 times with 100 success).
     
  4. jimmy j
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    jimmy j Awesome for hire.

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    I'll check it out and get back to you
     
  5. jimmy j
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    jimmy j Awesome for hire.

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    Would I be able to use Lumines with firmware below 3.03?
     
  6. AshuraZro

    AshuraZro Belongs in a museum.

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    Let's not forget that anything that is 2.80 or less can be downgraded without any games I believe. 2.71 and below for sure without the need for an exploitable game.
     
  7. jimmy j
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    jimmy j Awesome for hire.

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    So the easiest method (whatever fw it has) is to upgrade to 3.50, then use the lumines exploit and the 3.50 downgrader that Nenyana mentioned?
     
  8. AshuraZro

    AshuraZro Belongs in a museum.

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    If it's above 2.71 and you have a copy of lumines within your grasp, then yes. I'd move to 3.50 (NOT 3.51) and downgrade from that point.
     
  9. jimmy j
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    jimmy j Awesome for hire.

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    I think I understand (somebody please correct me if I'm wrong)

    1. Download 3.50 firmware [from un-named site]
    2. Put HEN 3.50 downgrader plus the recommended 1.50 patcher on the memorystick (I've got the instructions for this)
    3. Run Lumines and follow downgrader instructions

    That will leave me with a downgraded 1.50 PSP, right? Then I can upgrade to the latest dark alex firmware? Which version should I use?
     
  10. lenselijer

    lenselijer GBAtemp Advanced Maniac

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    1. update psp to fw 3.50
    2. get the downgrader files + 1.50 eboot and put them in the correct folders on the memorystick.
    3. double check that all files are in the right folders on your memorystick.
    4. boot lumines, press start when the menu appears and you will be booted back to the xmb.
    5. check the system settings and it should say: 3.50 HEN
    6. now goto game --> memorystick and start the downgrader.
    7. press x to confirm and wait till its done, the psp will reboot and you're at 1.50
    8. now install custom firmware 3.40oe-a and start playing [​IMG]
     
  11. [M]artin

    [M]artin .

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    Have IRC? Then head over to #psp-hacks on irc.dashhacks.com

    There's ALWAYS someone there and they'll help you downgrade and upgrade to any version without any trouble (plus they have links to special programs that'll help you install them i.e. Easy Installers)

    Now I have a question, when you guys say a copy of LCS or Lumines for those later firmware versions, does it have to be an actual physical UMD or can it be an ISO?
     
  12. Nenyana

    Nenyana Advanced Member

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    It has to be a physical UMD. No official firmware can load ISO's and if it could then it would mean that you already had kernel access so wouldn't be attempting a downgrade in the first place.
     
  13. chuckstudios

    chuckstudios Putting the pro in procrastination

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    Heh. Can't 3.5x load ISOs? [​IMG]
     
  14. deathfisaro

    deathfisaro Narcistic Deathfisaro Fan

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    People found an ISO loader in them but no, you won't be able to run ISOs on official 3.5x AFAIK.
     
  15. jimmy j
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    jimmy j Awesome for hire.

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    Excellent! [​IMG]
     
  16. 4saken

    4saken Retired Ace Attorney

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    Can't you just upgrade to 3.03 and use GTA LCS? Or did they somehow stop this.
     
  17. jimmy j
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    jimmy j Awesome for hire.

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    You can still do it, but sony patched later versions of GTA to stop the exploit. You just need an unpatched copy.
     
  18. licker2

    licker2 Newbie

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    He was kidding >_>

    EDIT
    Or was he [​IMG]
     
  19. 4saken

    4saken Retired Ace Attorney

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    I guess, which would make Lumines easier and cheaper to find
     
  20. nycwii

    nycwii Advanced Member

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    if you are going to downgrade make sure its a lumines original or greatist hits.

    the + platinum, and 2 versions will not work. also since the downgrader has come out the difficulty of finding one of these originals have increase 10 fold. i would reccomend picking 1 up asap