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afterdawn.com > forums > consoles > sony psp - mod and firmware discussion > downgrading from 3.90m33 to 3.71m33
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Downgrading from 3.90M33 to 3.71M33
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STLfan
Junior Member
_ 		15. June 2008 @ 19:02 _ Link to this message    Send private message to this user   
I am trying to downgrade from 3.90M33-3 cfw to 3.71M33 cfw and I'm running into problems. I tried to run Pandora's Battery Creator on my memory stick and I am getting the error "game cannot be started". Can anyone point me in the right direction on what needs to be done to downgrade to resolve this issue? Thanks for any assistance.
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chwoolgar
Senior Member
_ 		16. June 2008 @ 17:08 _ Link to this message    Send private message to this user   
Have you got Sony NP... selected on the UMD option in the recovery menu?

You may have the version that needs to be run on 1.50, if so install the 1.50 addon, switch kernel to 1.50 and run again
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STLfan
Junior Member
_ 		16. June 2008 @ 21:52 _ Link to this message    Send private message to this user   
What's the easiest way to downgrade on a psp fat from 3.90M33-3 to 3.71M33? I've been all over these forums and I can't find one that is clear and concise. I just can't use pandora's battery and the magic memory stick to downgrade right?
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edlimym
Newbie
_ 		17. June 2008 @ 09:28 _ Link to this message    Send private message to this user   
Originally posted by STLfan:
 What's the easiest way to downgrade on a psp fat from 3.90M33-3 to 3.71M33? I've been all over these forums and I can't find one that is clear and concise. I just can't use pandora's battery and the magic memory stick to downgrade right?

of coz you can, try UPMS to downgrade straight to 3.71m33. :)
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STLfan
Junior Member
_ 		18. June 2008 @ 10:29 _ Link to this message    Send private message to this user   
I've run the UPMS Installer and now I am all confused on how to downgrade my PSP now. I ran through all four menus to setup everything on my memory stick.
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January39
Member
_ 		18. June 2008 @ 14:00 _ Link to this message    Send private message to this user   
Just hit the menu dcv3 & install 3.71 M33. Simple as....

Hit the link in my sig for the UPT installer if required.
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This message has been edited since posting. Last time this message was edited on 18. June 2008 @ 14:01
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STLfan
Junior Member
_ 		18. June 2008 @ 17:02 _ Link to this message    Send private message to this user   
I did the menu 3 install with the left trigger for the dc3v folder installation. Now I'm looking at menu 4 and if I do the 352-M33, 371-M33, or the 380-M33 install, I go the system information in my psp and it still says 3.90M33-3. I've tried the whole holding down the left trigger to start the dcv3 folder and nothing happens. Is there something else I'm not doing right? Please help me out here.
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