Ok so here's the deal, I haven't touched my PSP in ages and I want to update it to 3.80 M33. My PSP used to have a clean 1.5 but I wrote some things to the flash with Xflash ages ago (So it says my firmware is 13.37 ). I always used Devhook to emulate 2.7 I think. So can anybody give me a step by step to update my PSP. Because as far as I know I can't just update from 1.5 to 3.80 M33. Help would be uber appreciated .