help with unbricked psp

will this make my firmware 1.50 from the 3.71 m33-2?

ok i have a file with eboot.pbp ipl_update.prx libpsardumper.prx and pspdecrypt.prx in it this is named 150.pbp and is on root of mem stick. Then the same but folder is named update in psp/game is this right?

So you are basically trying to recover to 1.50 from 3.72 M33? Can you open the Recovery menu? If so you can use this tutorial: http://www.pspbrew.com/forum/viewtopic.php?t=6847

not intending to! thought i could run hombrew on the 3.71 fw?

You need a custom firmware or 1.00 or 1.50 to run homebrew.

is 3.71 m33-2 not custom firmware then? thats what i have and homebrew doesnt work!

Oh yea, you said 3.71 fw earlier, do you have the 1.50 kernel installed?

thats the bit im stuck on, thought i did but when i posted what was in the kernel i dl i was told that was 1.50 fw!!