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Help to downgrade 6.31 to 5.50

Discussion in 'Sony PSP - Mod and firmware discussion' started by spystyle, Apr 25, 2012.

  1. spystyle

    spystyle Member

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  2. Eisherz

    Eisherz Active member

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    What PSP do you have? 1000, 2000, 3000, PSPGo, E-1000? Depending on the model downgrading isn't realy an option and also 5.50 GEN is outdated, there are newer firmwares that don't require a downgrade.
     
  3. spystyle

    spystyle Member

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    Thanks for chiming in :)

    I have a FAT PSP 1001 with firmware CFW 6.39 ME-5 (I think)
     
  4. spystyle

    spystyle Member

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    Can I get a clue ?
     
  5. Eisherz

    Eisherz Active member

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    Why do you want to downgrade then? You already have custom firmware on your PSP, so the game should work without downgrading or without doing anything else.
     
  6. spystyle

    spystyle Member

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    OK let me fire up this PSP :) It belongs to my daughter and I only have to mess with it once in a while. I am old school and know more about mod chips than soft mods LOL

    So I check the PSP and it is at 6.39 ME-5

    There are 9 games on the memory stick :

    Disgea, the game could not be started 80010087
    Project Diva 2nd, same error
    Harvest Moon Boy & Girl, same error
    Harvest Moon Hero of Leaf Valley, same error
    Gurumin, same error
    Diner Dash, same error
    Me & My Katamari, same error
    Harvest Moon Innocent Life, same error
    Class of heroes, works perfectly (???)

    So I took a look at the card contents and saw that class of heroes was in a directory like PSP/GAME and the others were all in ISO, so I deleted "Class of Heroes" but it did not resolve the problem.

    I guess I'll look up that error number.

    Honestly, if this thing was mine, I'd just load it up with NES and call it a day LOL

    Thanks!
    Craig
     
  7. spystyle

    spystyle Member

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    OK, I think it's resolved :)

    Press select on the main screen to open VSH menu, then change "UMD ISO MODE" from "normal" to either "ME Driver" or "Sony NP9660".

    It seems to work :)

    Thanks!
    Craig
     
  8. Eisherz

    Eisherz Active member

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    Class of Heroes seems to be homebrew, the rest are official games. I bet your daughter used an original UMD in the drive to play the games?
     
  9. spystyle

    spystyle Member

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    I don't recall how that file got on there.

    Anyway, the best clue you gave me was that I did not need to downgrade, thanks :)

    Usually I just need a clue then I can search around and figure out soft mods. With hard mods it was much easier - solder and play LOL

    OK, thank you and have fun :)

    Craig
     

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