How To Downgrade 2.81 - 3.40
Jul 23rd, 2007 by Big Monkey
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If your PSP is Version 2.81 through 3.40 you first need to upgrade to 3.50 using the 3.50 UPDATE.
Download the 3.50 UPDATE and extract the files to your desktop.
Click here for Download Help.
Please read Important Downgrading Information before you proceed.
Read the instructions below and the appropriate Readme.txt file if one is included.
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Instructions:
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Step 1.
Connect your PSP to the computer with the PSP USB cable, and connect your AC adapter to the PSP.
Step 2.
Turn the PSP on to USB mode as follows:
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- Go all the way to the left in your PSP menu to Settings
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- Go up to the option USB connection and press X
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Step 3.
Your computer should tell you that it has recognized a new drive, or words to that effect.
Step 4.
On your computer go to My Computer & find the drive letter for the PSP, (e.g. - F: or C:) right click that drive letter, then click Explore. (You are now looking at your PSP memory stick.)
Step 5.
On your computer open the 3.50 UPDATE folder. Inside you will find a folder called PSP. Copy the PSP folder and put it in the root directory of your PSP. It will overwrite the old one that you already have.
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Step 6.
In your PSP menu go to:
- Game –> PSP Update ver 3.50.
Press X. Follow the instructions. This is a Sony upgrade so it should be fine.
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You are now upgraded to version 3.50.
Now go to Downgrade 3.50
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can anyone tell me what is wrong with my psp? i’ve done everything it said i went to game to the memory stick icon and click on the update it said the game could not be started (dadadada)
can anyoun tell what is wrong (im using a foreign psp my current system is 3.10 OE-A’)
I also get the “game could not be started, dadadadadadadada” error and I’m on 3.40 0E-A.
Any idea what could be wrong?
Thanks!
DO NOT use this if you have custom firmware. This is the official update. This is only for people who have never downgraded before.
If you are at 3.40 OE-A go here:
http://www.psp-monkey.com/upgrade-150/
this didn’t help me..
my psp wont work except for the recovery menu..
I can’t really help you, I don’t know what kind of error you got or what happened.
hmmmm i got the same error, im on 3.10 OE-A. suggestions?
Try checking the comments here some people there were having the same problem and fixed it:
http://www.psp-monkey.com/upgrade-150/