Hey guys. I have a PSP 1000 running 6.39 ME - 5 custom firmware(just updated). I would like to install 5.00 M33 on it as well, since I heard it's possible, and triple boot between OFW 6.39, and custom firmwares 6.39 ME - 4 and 5.00 M33 - 4. I KNOW it's possible to do. I've tried a couple guides, but I'm still confused. I think there was something about me having to use my Pandora battery in my PSP all the time in order to enable triple boot? Isn't there a way to use my standard battery to triple boot, or, am I just really confused? Please help! Thanks!