I'm planning to get a PSP and have been looking at various methods of loading homebrew on it. I did looked into this a long time ago and modding the PSP requires installing a modchip. All I could find nowadays are guides on installing the custom firmware. What are the differences between using a modchip and custom firmware besides the obvious need of opening the PSP? Also, if the PSP that I'll get have 'IC1003' which is the 'TA-082' motherboard as I've read, does that mean the PSP cannot install any custom firmware?