How do I downgrade 3.95 Gen-2


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Monday 1.9.2025 / 20:47

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How do I downgrade 3.95 Gen-2

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nyjetsfan

Newbie

26. June 2008 @ 09:49

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i tried using pandora but the program wont run on the psp so what else can i do to downgrade to another cf or to 1.50

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Dr1ver

Senior Member

26. June 2008 @ 10:02

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use upms it'll take you to 3.90m33-3, 3.90, 3.80m33, 3.80, 3.71m33-4, 3.71, 1.50

so id use it to go to 3.90m33 or 3.71m33

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nyjetsfan

Newbie

26. June 2008 @ 11:02

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i just put upms on and that program wont run either, is there a way i can just reset my psp to 1.50 thanks

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Dr1ver

Senior Member

26. June 2008 @ 11:11

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with out pandoras battery no

with upms do you have it in the iso folder and have the 1.50, 3.71, 3.80, 3.90 updates in the root of the memory stick renamed to
150.pbp
371.pbp
380.pbp
390.pbp

then run it and follow the step and it should work

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nyjetsfan

Newbie

26. June 2008 @ 11:30

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i have upms in the iso folder but i only have 150.pbp and 371.pbp in the root, do you need the other pbp files in the root for it to work, if thats the case ill try later cause i have to do something else now but ill post my results later

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Dr1ver

Senior Member

26. June 2008 @ 11:37

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yep you will need all of them

also when it asks you do you want a 1.50 to be copyied as update click yes if you want to go back to 1.50 or click no if you want to install cfw.

also if you want to go to 1.50 use the hellcat version
if you want 3.71/m33 is dc v3
3.80/m33 is dc v4
3.90/m33 is dc v5

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nyjetsfan

Newbie

26. June 2008 @ 22:28

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i copy all the files and firmwares correctly and when i try to run upms i get error (80020321) , what should i do?

thanks

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Dr1ver

Senior Member

27. June 2008 @ 04:23

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