Excellent work Hercules,
Two weeks back I got my first PSP SLIM (piano black) with OFW 3.72 + Sony 4GB Memory Card + Shyphonfilter - LOGAN"S SHADOW game.
Spent sleepless nights tring to figure out how to install CFW
Today i went from OFW 3.90 to CFW 3.90 M33-2 within a druration of 2 hours.
*) Cutting of the battery was the easiest part.

*) Modded the battery by carving a line instructed by the battery circuit
diagram. (because of which still can recharge the battery

)
*) Made the Magic Memory Stick by using Catb50 Team's Magic Memory Stick
Creator v2..
*) On the PSP end, while holding L .. inserted the battery .. which
automaticaly presented me with the Installation Options. The power lights
were solid green though after the battery was inserted, i think . only
during the Flashing process the memory stick & WLAN lights were going
crazy.
And within no time i had CFW 3.80 M33-5.
Only had a slight issue with the Catb50 Team's Magic Memory Stick Creator
v2.0 application on windows XP SP2.. after the second format the software wouldn’t copy the contents of the MS_ROOT Folder on to the Memory Stick.
Had to do it manually when it gave the error that it couldn’t copy to G:
i did try both the full version and the lite version.
After that everything went smoothly ..
I am a Noob to PSP .. and got things done because of your guide...
Thanks & Kind Regards from INDIA,
Axe101
__________________________________________________ _______________
OFW 3.72 -> OFW 3.90 -> CFW 3.80 M33-5 -> CFW 3.90 M33 -> CFW 3.90 M33-2
Now Playing: Syphonfilter - LOGAN'S SHADOW