(07-31-2009, 04:05 PM)Raizen Wrote: pretty sure its psp fat but to put custom firmware on it i need another psp batteri and another memory stick that is compatible with what you need to get the custom firmware to work? is that all you need or is there anything more?
If it's a fat psp, it's pretty easy. To load custom firmware (abbreviated CFW, needed to play homebrew) you need to do one of two things:
1. Find a software downgrader and drop down to official firmware version 1.5, which allows homebrew execution natively. From here you can load CFW normally, but there may not be a software downgrader for the newer firmware versions.
2. Use the hardware downgrade method. This involves using a special battery that has been modified internally, and a memory stick loaded with the appropriate software to overwrite the stock firmware with CFW. Doing the modification yourself on a spare battery is possible, but not recommended.
Additional notes: this modification can also be done through homebrew code on the psp, leading to an interesting chicken-and-egg problem. If you don't have access to another psp with CFW, cutting open the battery and doing it the hard way is the only way to get it done. Batteries modded this way can NOT be used as normal batteries, and essentially become useless unless you're loading CFW.
If you're near a major city in the US, you can look on Craigslist and similar services to find people willing to flash CFW to your psp for a nominal fee.
When I bought my psp a few years back, I found someone that lived in the same dorm as I did through Craigslist. $10 was well worth not having to cut open a battery