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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.!
First, try to determine your PSP's version. If it is the PSP 3000 (PSP slim with a narrow ring on the UMD Door), you can only play game demos from the PSN and can't be modded as of this date. If you have the PSP 2000 (slim with a wide ring on the UMD door) there is a chance you can't downgrade depending on your motherboard. Pandora's Battery and MMS is required to 'jaibreak' your PSP if you are on Sony official firmware.
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.
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.
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
If so, your PSP probably runs on an Official Firmware of Sony...to check if it is an official firmware, just go to your XMB>SYSTEM>SYSTEM INFORMATION, then check your System Software...if your System software has the M33-2 suffix, it is a Custom firmware and it should be able to run games on your Memcard...then if it DOESN'T HAVE a M33 Suffix, therefore, I'm sorry to say that iit is an OFFICIAL Sony Firmware and IT CANNOT run games on your memory card...the only way to fix that is you should have it modded/downgraded and then upgraded to a custom Firmware...
It's impossible to downgrade your PSP from it's current version. I'm not quite sure why you'd want to downgrade, but maybe you should upgrade (If a version is available) again and see if you like that version better. ^-^