1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Downgrading CFW to another CFW (3.90 to 3.71M33-4)

Discussion in 'Sony PSP - Mod and firmware discussion' started by cmv120, Feb 3, 2008.

  1. cmv120

    cmv120 Guest

    is there anyway to do that? I kinda liked 3.71m33 more. But I updated to 3.90m33... some PSX games dont work, and some Homebrew files dont work... so any help would be appreciated.
     
  2. marlino23

    marlino23 Regular member

    Joined:
    Apr 1, 2007
    Messages:
    2,821
    Likes Received:
    0
    Trophy Points:
    46
    You can try to re-flash to the 3.71 M33 firmware again using the a pandora if you have a slim. If you have an original PSP then you can downgrade to 1.50 and then 3.52 M33-4, followed by 3.71 M33. I'm not positive but you can simply put the 3.71 M33 files under the game folder and try to update from there.

    That (above) may take a while to do. Some ways to get your PSX games to work are to try the new 3.90 M33 popsloader. This supports more PSX games to be played.

    If your homebrew isn't working and you own an original PSP, you have to install the 1.50 add-on again. You can find the 3.90 M33 add-on here.

    If you really are sure you want to go to 3.71 M33 again I can help you but there are two ways to downgrade and I need to know what type of PSP you have to tell you which way.
     
  3. wichozzz

    wichozzz Regular member

    Joined:
    Mar 10, 2007
    Messages:
    606
    Likes Received:
    0
    Trophy Points:
    26
  4. rickem

    rickem Regular member

    Joined:
    Dec 13, 2007
    Messages:
    995
    Likes Received:
    0
    Trophy Points:
    26
    @wichozzz

    He's going from CFW to lower CFW. Your video shows OFW to CFW.
     
  5. wichozzz

    wichozzz Regular member

    Joined:
    Mar 10, 2007
    Messages:
    606
    Likes Received:
    0
    Trophy Points:
    26
    if him got 3.90m33 and need back to 3.71m33-4
    use pandora to (Despertar V3) to get 3.71m33-2 , then
    just Updte the next ones -3-4
    hope this help
     
  6. andiamo71

    andiamo71 Member

    Joined:
    Nov 19, 2007
    Messages:
    12
    Likes Received:
    0
    Trophy Points:
    11
    @ marlino

    I have a fat psp, cfw 3.90m33 with 1.50 addon 2. I just bought a sony location free, and found out that i cant use it with 3.90m33 OR 1.50 (unless someone knows something i don't). Anyway, as I understand it, the location free is only good with 3.52m33, so can I downgrade from 3.90m33-2 to 3.52m33? Also, do need to get rid of 1.50? If so, how? Will I still be able to play my homebrew without 1.50? Please help. I google'd this, with no luck.
     
  7. Tom123456

    Tom123456 Member

    Joined:
    Mar 10, 2008
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    11
    hi I have got a psp slim and i want to download 3.90 m33 on it but i already have the normal 3.90 and when i try and update it it say no need to update what do i do pls help
     
  8. Deathtord

    Deathtord Regular member

    Joined:
    Jan 18, 2008
    Messages:
    193
    Likes Received:
    0
    Trophy Points:
    26
    Tom123456
    You are on OFW 3.90. You will not be allowed to upgrade to M33 from there. Despertar V3/V4 will not be able to run on your PSP. Therefore you must have a handy pandora battery and a magic memory stick.
     
  9. Tom123456

    Tom123456 Member

    Joined:
    Mar 10, 2008
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    11
    pandora battery and a magic memory and could you tell me where to buy one and when i got no what do i do
     
  10. error55o

    error55o Regular member

    Joined:
    Jan 31, 2006
    Messages:
    175
    Likes Received:
    0
    Trophy Points:
    26
    buy a pandora and magic stick? find a mate with a pre modded fat psp and I can help you make both

    why buy something you can make for it free with no modding of the batteries hardware ^_^
     
  11. error55o

    error55o Regular member

    Joined:
    Jan 31, 2006
    Messages:
    175
    Likes Received:
    0
    Trophy Points:
    26
    by the way, I am on 3.90m33-3 with the 1.50v2 kernal addon and will be down grading today and will post how to here and on main psp help forum :)
     
  12. error55o

    error55o Regular member

    Joined:
    Jan 31, 2006
    Messages:
    175
    Likes Received:
    0
    Trophy Points:
    26
    actually I wont, there are a few methods to doing this and it's all dependant on what fw you have, so if your still getting problems come to irc and join me and others there that can help you ^_^

    IRC - irc.dashhacks.com
    IRC ROOM - #psp-hacks
    PORT - 6667

    (there is a web interface for irc too on www.psp-hacks.com and click chat now)
     

Share This Page