Can a 2.6w/ta-082mb be downgraded

[dk23]

Hello, i wanted to know if my psp with a 2.6 firmware and a ta-082 mother board be downgraded to a 1.5 firmware. Then upgrade to the 3.10 oe. If so can someone please help me?

[F34R]

I'd like to know if anyone ever even looks at the sticky threads before asking questions...

http://www.talkvideogames.com/showthread.php?t=36489