Have 2.60 FW psp want to downgrade to 1.50 so i can get to 3.40oe need help.

I need the easiest way to get my 2.60 FW psp down to 1.50 so i can get a custom 3.40 oe firmware on it. i dont have GTA or anything and i have read that there is an easy downgrader from 2.71 FW so i was thinking maybe if i could get my 2.60 to 2.71 then i would be in business. but if there is another way or an easier way i am missing please let me know. thanks to you all.

easiest way is at 2.71.

ok if 2.71 is easiest where can i find an upgrade for my 2.60 to get it to 2.71?

2.71 update: http://www.psp-hacks.com/file/525

ok got the update. i know this is gonna be a noob question but how do i install it?

nevermind i figured out how to install it :) was easy like i thought it would be lol thanks for all your help!!

no problemo