help with downgrade 6.60pro c to 6.20

Discussion in 'PSP - Hacking & Homebrew' started by steveroo, Dec 16, 2012.

  1. steveroo
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    steveroo GBAtemp Fan

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    i'm wanting to downgrade my psp 1000 to 6.20 from 6.60 in order to install permanent custom firmware.

    wololo has a link to do it. i'd paste the instrucitons but i don't think gbatemp allows other forum links.

    i just want to know if this is safe? my psp is fat v3.0, bat eeprom access read and write possible cfw. yes w custom IPL (from pspident 0.75). Also is it best for me to delete 6.20 pro c temporary first before downgrading?
     
  2. Rydian

    Rydian Resident Furvert™

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    Other forum links work fine, in particular we know the Wololo forums are a great source of info.

    Yes, every 1000 can downgrade to 6.20 using the special downgrader homebrew. From what I've seen the official install process wipes flash0 as well, which will automatically get rid of the PRO installation too.

    Why 6.20 though? 6.60's permanent patch via cIPL should work on every 1000.
     
  3. steveroo
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    steveroo GBAtemp Fan

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    I've read that the cipl flasher for 6.60 pro c has bricked some peoples psp 1000 from the wololo forums.
     
  4. Rydian

    Rydian Resident Furvert™

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    The initial release, but a "fix" release was posted shortly after, replacing the original files.
     
  5. steveroo
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    steveroo GBAtemp Fan

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    i went back to the thread i used to install pro c from wololo, and comments still list 6.60 unable to be permanently installed on 1000 psps
     
  6. Rydian

    Rydian Resident Furvert™

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    Link to the thread?
     
  7. DarkCrudus

    DarkCrudus The Ghost

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  8. steveroo
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    steveroo GBAtemp Fan

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  9. driverdis

    driverdis I am Justice

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    thats good, but if you have a PSP1000 then why not get a pandora battery just because. that way, its impossible to brick it. i made a phat one and flashed a psp slim battery to pandora using a psp1000 (dangerous but it worked).
    i can unbrick my PSP1000 and PSP2000 any time i want and use TimeMachine.