Downgrade PSP 3.71?

Question

I've got a Slimline PSP with Sony's Firmware 3.71 and I want to downgrade it to version 1.5 (I'm pretty sure you know why). I want to do this using a Pandora's Battery, but I have only one set of PSP stuff (Battery, Memory Stick PRO duo, PSP itself). So how do I do this with only 1 of each? I would like a step-by step guide.

Answer 1

watch a youtube video and it will show you step by step on how to downlgrade it on some videos