Question about Sony PlayStation Portable (PSP) Console

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Downgrade psp firmware 5.02

My sons psp slim has a 5.02 downloaded from the internet. the problem is that it cant read hid memory stick. previously he has a 3.9 m33-3. how can i get it back to that firmware?

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  • rojake2004 Jan 19, 2009

    i have 4.01 version 2 firmware and i updated to 5.02 then my PSP cannot read already the games on memory stick

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Someone will have to run the flash program to get you back to M33. Pandora battery and Magic stick with M33 flash on it. Most homebrew and programs will not run on any M33 version above 3.9. New UMD games from sony will have the latest firmware and the children will usually run the firmware upgrade to play the game. It will allow the new UMD to play, but the Sony Firmware will write over the Custom M33 firmware and you will not be able to run the games on your Memory stick.

Posted on Dec 30, 2008

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2 Answers

How can i downgrade my ver 6.10 software psp????


Hello there

Download MPH Downgrader and Firmware version you want(e.g 1.50) to the Windows-based computer. Connect the PSP Slim to the computer's USB port using the USB connector. Transfer the two programs to the main folder of the PSP Slim. Disconnect the PSP Slim from the computer's USB hub when the transfer is complete.

Turn on the PSP Slim. Go to the Settings/USB Connection in the Home menu and select the EBOOT.PBP file in the PSP\GAME\UPDATE update folder. Extract the MPH Downgrader zip file to the root folder of the PSP. Click OK using the X button if you are prompted that this will replace some files.

Go to Photo/Memory Stick in the Home menu. Wait as the screen goes black and numbers appear. Wait two minutes and then press and hold the power switch until the PSP Slim turns off. Release the power switch.

Wait as the PSP Slim turns on and reboots. Go to Game/Memory Stick in the Home menu and select PSPS Update version 1.50. Press the X button to start the update.

Wait as the update finishes and presents an error message. Press the O button to restart the PSP.

Oct 04, 2010 | Sony PlayStation Portable (PSP) Slim...

Tip

Pandora's Ultimate Magic Stick 3.80M33-5


New version of UPMSv3 - universal PSP Unbricker/Downgrader/Upgrader, also known as Pandora's Ultimate Magic Stick, Now work with DC ver4 (Dark_AleX’s), for installing CFw 3.80M33-5 and creating memory stick into a “Ultimate Magic Stick” for use with “Pandora’s battery” (jigkick). Works for both PSP, Slim and/or Fat, and 1 stick for all functions for Unbricker/Downgrader tools. Also available is the “UPMS_v3.pdf Guide” to help you get started and usage.

The Ultimate Pandora’s Magic Stick is the simple solution to easily accomplish any of the following:
  • Recover any bricked PSP (Fat or Slim) and install sony firmware or CFw M33.
  • Upgrade Fat-Slims PSP to CFw 3.80M33-5, with 1.50 kernel patch-Fat Only.
  • Upgrade Fat-Slims PSP to CFw 3.71 M33-2, with 1.50 kernel patch-2 -Fat Only.
  • Update to 3.71M33-4 are installed to the ‘GAME’ folder from the XMB.
  • Downgrade Fat PSP to Fw 1.50.
  • Upgrade Fat PSP straight to CFw 3.52M33 from Extended Boot Menu then install update 3.52 M33-4 from XMB, without need to downgrade to 1.50.
  • Boot up PSP using Ultimate Loader with support for choosing which Pandora’s you reach V1, V3 or V4.
  • Boot up PSP to XMB with UPMS inserted-Fat Only.
  • Boot up to a full FW 1.50 from Memory Stick-Fat Only.
  • Use PSP Filer and other tools (If it requires 1.50, can’t for Slims).
Note: This software is free, and comes with no warranty. Despite it has been tested and it has worked, there is some risk with any PSP operation that involves flashing, so please try this at your own risk!.

Only Memory Stick "Pro Duo" are compatible. Memory Stick Duo are not supported. Read more... for installation
here.!

on Mar 06, 2008 | Sony PlayStation Portable (PSP) Console

1 Answer

My PSP 2000 slim don't turn on. This happen when I upgraded my firmware version from 5.0 to 5.5 GEN A.After the installation I restart my PSP, but my PSP won't start.LED lights on (green)for only 8...


You CANNOT downgrade to an earlier custom firmware or software sit until a newer custom firmware is available. You will have to make a Pandora Battery and a Magic Memory Stick. Basically you have to open up a PSP battery and cut a certain peg. The magic memory stick is alot easier and doesn't pose a threat to the PSP. Watch a tutorial on youtube for the Pandora Battery so you don't stuff up, there is a different method for the PSP Slim battery

Dec 23, 2009 | Sony PlayStation Portable (PSP) Slim...

5 Answers

Psp will not run games or turn on


its because the psp version where change that's why the psp stops working on games only psp version's with m33 can play download games and other might depend on your umd games...so i suggest that you downgrade your psp to the original version of the psp that you have so your son can play the games that he want. hope it helped.. send me a message for more concerns...ty

Apr 09, 2009 | Sony PlayStation Portable (PSP) Slim...

4 Answers

I cant put games on my psp slim


if you have downloaded the firmware from the internet, that is really not advisable. it would be best to go the nearest gaming zone for updating firmware.
some firmware are not compatible and not updated. downgrade your firmware to a more stable firmware.

Mar 01, 2009 | Sony PlayStation Portable (PSP) Slim...

6 Answers

No psp games


you had customfirmware and then you updated ot with officail firmware. you will probably need to use the pandoras battery method to play your iso games again.


google is ur friend

Jan 30, 2009 | Sony PlayStation Portable (PSP) Slim...

1 Answer

I upgrade my psp in version 5.01, now i cant play my games


HELLO! There's no need to downgrade ur PSP. If u have upgraded ur PSP from the official site and a official firmware has been installed on to ur PSP, it won't execute games(ISO,CSO) from ur memory stick. It will only run games from the UMD. If u want to run ur games from a memory stick u have to install a CUSTOM FIRMWARE. Try www.psp-hacks.com these guys have many softwares on their site. Dont worry its not that hard to put a Custom firmware onto ur PSP. 

Jan 30, 2009 | Sony PlayStation Portable (PSP) Slim...

3 Answers

Downgrading my psp


you cant it is impossible to downgrade anything above a 4.00 without using the pandoras battery method.

Dec 28, 2008 | Sony PlayStation Portable (PSP) Console

2 Answers

How to downgrade psp v5.01 to 3.80


hi your previous psp version is 3.80 m33 if yes your using custom firmware that why you can play game to your memory stick the problem is you upgrade your psp firmware to sony official firmware 5.01 you reinstall your firwmware again using custom firmware like 5.00 m33-3 cfw below with m33 or OE

Nov 02, 2008 | Sony PlayStation Portable (PSP) Console

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