1. Ryccardo

    OP Ryccardo watching Thames TV from London
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    Downgrade a PSP-1000 to 1.50
    Why this guide?
    Because going so low from modern CFW is far from obvious: version.txt spoofing to 1.00 then "updating" won't work due to incompatibilities; Hellcat's Recovery Flasher also fails to extract and flash it, despite having a dedicated feature; the original Pandora PC tools, if you can find them anymore at all, don't really work on Windows 7 and newer...

    Why 1.50?
    Because It's Possible, maybe you want to relive the "good old days", or to scalp it on ebay: "ignorant collector's tax"!

    Needed things

    What to do?
    Well, if you are sufficiently familiar with operating a PSP, once you have those files it's mostly intuitive... except maybe for the first step :)

    1. Insert a formatted Memory Stick, equal or lower to 4 GB
    2. Copy the firmware to the root of the Memory Stick, renamed to UPDATE.PBP
    3. Copy the homebrew to /PSP/GAME/PSP Tool/EBOOT.PBP
    4. Run PSP Tool, select "Memory Stick Tools", "Create Magic Memory Stick", "1.50 update flasher (Original Pandora)"
    5. Press the back button to close the credits, wait for the files to extract, install the Time Machine CIPL to the memory stick and assign it to the button of your choice, and flash your battery's serial number to FFFFFFFF (known as Pandora or Jigkick)
    6. Remove all power sources, hold the button(s) you configured, insert the battery, and follow the highly complicated instructions
    7. Factory reset your console from Settings>System
    8. That's it!
    Yes, you can flash directly any newer firmware - including 6.61 - from 1.50[/URL]![/LIST]
     
    Last edited by Ryccardo, Sep 2, 2019
  2. Reploid

    Reploid GBAtemp Advanced Maniac
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    wow so retro much nostalgia, not much sense
     
  3. CallmeBerto

    CallmeBerto The Lone Wanderer
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    1.00 and 1.50 now that takes me back. I remember when 3.70 was the GOLDEN boy.
     
    THYPLEX likes this.
  4. emmanu888

    emmanu888 6 years and still going strong
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    Holy crap Pandora Battery, this just bought back so many memories of me installing CFW's on my friend's PSP's
     
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  5. Thirty3Three

    Thirty3Three Musician Member
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    2006 called.


    That's it. they just called
     
  6. timmy30274

    timmy30274 Newbie
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    i have my psp3001 OFW660 then got the cfw 660 files placed in the UPDATE folder on my memory stick.

    but if i do this, what will i gain? i just play games on my psp.

    i dont know anything about taking machines apart and tinkering with the insides, so, all i do is download files, then place into the correct folder on my memory card then run it.
     
  7. Ryccardo

    OP Ryccardo watching Thames TV from London
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    Nothing since, as the title clearly says, this is for PSP-1000s

    (If you could actually install 1.50, it would brick... but you won't be able to run the original Pandora flasher in the first place due to 3000s not supporting CIPL)
     
  8. subcon959

    subcon959 teh retro
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    The only problem I see is that the chances of there being many compatible batteries still in working order must be pretty low.
     
  9. Casey-Strange

    Casey-Strange Member
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    404 links
     
  10. Ryccardo

    OP Ryccardo watching Thames TV from London
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    Thanks for the report, Darthsternie moved his site to darthsternie.net - but I don't have a copy of Rain's MMS Maker 1.50 anymore...
     
  11. Casey-Strange

    Casey-Strange Member
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    I found one. It's kind of useless other than giving your memory stick a good format as I don't think the current firmware has the same vulnerabilities. Could be using it wrong or using the wrong versions. I ddidn't see anything in there about picking a firmware or the timemachine thing. It just came with the magic memory stick maker.
     
    Last edited by Casey-Strange, Feb 21, 2019
  12. martravi

    martravi Newbie
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    Ryccardo and alexander1970 like this.
  13. johndoe88
    This message by johndoe88 has been removed from public view by porkiewpyne, Oct 12, 2019.
    Oct 12, 2019
  14. xX-JMO-Xx

    xX-JMO-Xx Newbie
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    Wow thanks dude keep sharing
     
  15. Calyptor

    Calyptor Member
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    Man jailbreaking my psp was my first "hack"....info wasnt so readily available back then (fuck you and your old age jokes). I felt so badass when i managed to open the psp battery and make my own pandora battery ahhhh good times..... sec i need to take my detures out of the glass
     
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