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3.40 OE A

Discussion in 'Sony PSP - Mod and firmware discussion' started by herbdizle, Dec 31, 2007.

  1. herbdizle

    herbdizle Guest

    can any ome help me install 3.40 OE A?

    because i have this game that is an cso file n the file says that it was tested on a psp 3.40 OE A.

    does anyone knows how to do this?
     
  2. larrylje

    larrylje Active member

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    Go to M33 instead.

    At least 3.52 M33 or I recomend 3.71 M33-4.

    What firmware do you have on the PSP?

    Is it a PSP FAT or SLIM?
     
    Last edited: Jan 1, 2008
  3. Rogdrik

    Rogdrik Regular member

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    HERE is a pretty easy guide to get to 3.52 M33-4.

    After you are on 3.52 M33-4 if you do update..then ill give you another guide to go up to 3.71 M33-4 like larry said...;)
     
  4. herbdizle

    herbdizle Guest

    i have a 3.80 slim
    but i need 3.40 OE A because i have a cso game that was tested on a 3.40 but i dont know if it was tested on a slim or fat, n im would kill to play that game (madden 08) n dont have money to buy it
     
  5. Rogdrik

    Rogdrik Regular member

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    If it works on 3.40 OE-A than it works on any M33..;)

    Here is what you need if you are on 3.80
     
  6. herbdizle

    herbdizle Guest

    when i try to follow the guide, i follow it but it doesnt work,
    some dude something about needing to use a different battery
     
  7. 07anto07

    07anto07 Regular member

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    if ur on a slim u need a phat psp to make the battery and memory card
     
  8. herbdizle

    herbdizle Guest

    so basically i cant get the cso file to play, since it says that it was tested on a 3.40 OE A psp?

    n w/o the battery, i cant downgrade?
     
  9. larrylje

    larrylje Active member

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    3.40 OE-A can't be installed to a SLIM PSP but the game will work on M33 custom firmware also.

    But you need to install 3.71 M33-4 custom firmware to the PSP.

    Go HERE and follow this guide on how to do that.

    Your going to have to buy a Datel Tool Battery or Hardmod the SLIM Battery if it is a compatible SLIM Battery that can be hardmodded).

     
  10. herbdizle

    herbdizle Guest

    damn i have to buy a battery? thats bull, n plus it said i could hardmod the battery but i rethen not touch it, it is stupid how u have to do alot of things just to downgrade the psp. i think i'd be betteer of b uying the game.
     
  11. shummyr

    shummyr Regular member

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    The Lowest Slims Can Go IS 3.71 M33

    Because Slims Can Not Be Downgraded to 1.50 Or You Will Brick

    If YOu Need Help PM ME
     
  12. larrylje

    larrylje Active member

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    You could actually install 3.60 M33 if you wanted to. But most would rather have 3.71 M33. I am just making a point that you can downgrade it to 3.80 M33 and 3.71 M33 isn't the lowest you could go.
     
  13. herbdizle

    herbdizle Guest

    ok so when i go to the one page with the guide that u gave me, to downgrade the psp, i follow the instructions, n everything works fine untill i get to the part where it says ""delete the depertar_cementerio and pan 3xx""
    it says that the files cant be delted because they are being used by oher things.
    also when i go to the pandora battery creator in my psp, it says that the game could not be started n then i read the guide n it says about runing it on a 1.50 or OE n thats where i get lost.
     
  14. dEEz_nUtz

    dEEz_nUtz Regular member

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    Thats because you are using official firmware-It wont let you run the battery creator program unless you already have 1.50 or OE, M33, etc...running on your psp-which you do not have. You can create the memory stick that you need on your computer no problem-As far as the battery is concerned, you will either need to hardmod it, or you will need to purchase the DATEL ready-made battery- period.

    Otherwise try finding somebody you know that has a psp running custom firmware and see if they can make a setup for you.
     
  15. herbdizle

    herbdizle Guest

    to hardmod the battery, i have to open the battery right?
    n thne i run a risk of messing it up right?
     
  16. dEEz_nUtz

    dEEz_nUtz Regular member

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    You are correct on both counts sir....If you have shaky hands, you might want to reconsider popping the battery open as you run the risk of it blowing up in your face...

    Confucius say: Steady hand and eye protection are best friend.
     
  17. herbdizle

    herbdizle Guest

    i think ill have to give up, n ill buy a battery.

    but which battery do i need to downgrade?
    n where can i buy it?
     
  18. dEEz_nUtz

    dEEz_nUtz Regular member

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    I dont have a link handy, but google DATEL battery...otherwise you could get a set from eBAy.
     
  19. 07anto07

    07anto07 Regular member

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