QJ How-To #3: Custom firmware installation "So you have a PSP and you want to try out this thing called 'homebrew' you've been hearing so much about. Problem is, you're still on official Sony firmware. What to do? Well, read this guide for starters. Today we'll be tackling how to install custom firmware on PSPs running anything from OFW 1.50 to OFW 3.50."

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