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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.
First you have to modify your PsP to allow UMD dumper to work on your PsP. The easiest way to modify it if you are new to it is to get a Pandora battery. You can google pandora battery and a whole host of websites will offer them for sale. If you go this route then make sure you get the whole package which means that you may pay a little bit more but use a seller that is offering a magic stick with it. This magic stick will have the firmware on it to modify your Psp. These batteries come with instructions and can be purchased for under $25. Once you get the Psp modded then you can load UMD dumper and use this utility to back up your games to an ISO format and load them onto your memory stick... hope this helps. It may sound like a lengthy process but it is really simple once you get the pandora battery and modify your system.
the umd drive is approaching its end of the life. you might need to buy http://www.consolezombie.com/store/slim-replacement-drive-laser-assembly-p-34.html and replace your umd drive. This is what i just did to my psp-2001.
PS: The above link is only for PSP-200x (slim version of PSP)
psp firmware is corrupted, you be need to continue thats update.. 1. update via UMD, the umd that are use must have same firmware version or higher (5.03). check it in other psp. make sure you have a fully battery, then turn on psp.
2. update using sony media go, it a pc client for sony device.. connect psp to pc via usb cable, you will need a internet connection on pc. and it will update to the latest version - 5.51.
yes, try changing region to region 1 as it is possible the umd (disk you bought) is designed not to run unless the region matches. you'll probably have to change it again if you want to read disks from different regions.
my kids have the psps on their holidays at the moment back tomorrow, i will check the restore menus tomorrow for you and see if there is any other changes possibley needed,
also it is worth a try but try changing xmd to umd disk ( eventhough this is for access to memeory usually for usb connection, although it could be something to do with ver 3.71) note youl have to change it back to enter usb mode from your computer.
is yours the PSP slim version or standard version, ?
Yeah you can update your psp, just make sure it has at least 70% charge, 100 would be be better, plug it in and make sure you don't switch it off during its update. if you do, it will be bricked. as long as you do it properly, it will be fine.