There are a number of possibilities for this.
First, If the machine is quite old, it may be overheating due to dust buildup on the motherboard. You will need to slightly disassemble the PSP in order to fix that. Additionally, if the PSP has an older OS on it, you can download the updated one from Sony's website and use it to update your system, which will potentially solve your problem.
Otherwise, if the console has been exploited, you may have junk software running in the background that is taking resources from your games. If this is the case, you may need to re-install your Custom Firmware and attempt to install your custom plugins one by one until everything works as you want it to. Additionally, you may simply have accidentally set your CPU clock speed to a number lower than the games need in order to run at full speed. To fix this, just press the select button on the PSP's main menu and change your game clock speed setting from the VSH menu that comes up. The default setting is 333/133, so I recommend that you use that.
SOURCE: psp: I/O device error.
Its 100% because of the Bad cable.. Change the USB cable it will work fine
SOURCE: my psp always hangs
Instead of using a card reader, try to use the PSP in USB Mode with a connected cable. This may allow you to access portions that you currently are unable to access so that you may be able to backup the games.
Also, has your PSP been modded with a Pandora?
SOURCE: Can i play games frm memory card with updated psp 5.51 firmware
it should be possible if you get custom firmware or downgrade
how you can do this is by using a pandora battery and a magic memory stick
you can buy a pandora battery off ebay or whatever for cheap these days and you can use your current memory card as a magic memory stick
all it does is start the psp in a mode where you can reinstall the firmware with whatever firmware you want.
you will have to research into it because i have done it on my psp
im running 5.00 m33-2
but my psp is a 1002 model
good luck mate,
if you have any questions, email me
[email protected]
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