PSP - firmware update

keke, juz update Desmond phat psp to cfw 3.90
now able to play alot of games.
previoulsy running DEVHOOK 0.44 with 1.50-2.71fw only..

here's my step for doing it.

download, http://www.psp-hacks.com/file/1134
connect your PSP with USB to PC/Laptop. run the setup files and follow the README ;D
when done, your psp should b cfw3.40 OE.

now... follow this thread http://forums.qj.net/showthread.php?t=139372

Introduction Installing 3.90 M33 w/ 1.50 kernel add-on on your "phat" PSP involves lots of steps. I'll try to guide you through every single step, make sure you download all files in the requirements section. This guide was written with help from Moose_Island.

Requirements You need a 1.50/OE PSP and all of the following files: 3.52 M33 Installation Files 3.52 M33-4 Installation Files 3.90 M33 Installation Files 3.90 M33 1.50 Kernel Add-on v2 1.50 Update File 3.52 Update File 3.90 Update File

Step 1: Installing 3.52 M33 Make sure you have the 3.52 M33 Installation Files, 1.50 UPDATE file and the 3.52 UPDATE file ready. [Skip this if you are on OE] Copy the folders 'kxploitpatcher and kxploitpatcher%' to the directory; 'X:/PSP/GAME/' on your PSP's memory stick. Copy the folder 'M33CREATOR' to the directory; 'X:/PSP/GAME/' (or GAME150 on OE) on your PSP's memory stick. [Skip this if you are on OE] Run the kxploitpatcher program. Rename the 3.52 update you downloaded to 352.PBP. Copy the 352.PBP to the directory; 'X:/PSP/GAME/M33CREATOR/' (or GAME150 on OE) on your PSP's memory stick. Rename the 1.50 update you downloaded to 150.PBP. Copy the 150.PBP to the directory; 'X:/PSP/GAME/M33CREATOR/' (or GAME150 on OE) on your PSP's memory stick. Execute '3.52 M33 CREATOR' under GAME on your PSP. Then execute '3.52 M33UPDATE' under GAME on your PSP. Once finished, press X.

Step 2: Installing 3.52 M33-4 Make sure you have the 3.52 M33-4 installation files ready, the password is: Code: _DANIEL_SERAFIN_BRICKED_HIS_ASS_BY_M33_ Copy the 'M33Update4' folder to 'X:/PSP/GAME150'. Execute the file showing '3:33:33 - March 33' on your PSP. Read and agree with the license, then press X to flash the update.

Installing 3.90M33 Extract the '3.90M33 Update Files'. Connect your PSP to your PC via USB cable and do the following: Copy the UPDATE folder found in the extracted RAR file you downloaded, and copy it to: 'X:/PSP/GAME/'. If your PSP is Wi-Fi enabled you can skip the next 2 steps as the installer will download the 3.90 Update EBOOT automatically. Rename the 3.90 (download above) from 'EBOOT.PBP' to '390.PBP'. Place the 390.PBP in the UPDATE folder. Do not overwrite EBOOT.PBP that already exists in the UPDATE folder. Exit USB Mode. Make sure your PSP is using the 3.XX kernel: Turn your PSP off completely (hold the power button for 10 seconds). Hold R and turn your PSP on. A menu will appear, go to Configuration. Under 'Game Folder Kernel' change the kernel to 3.52 if it isn't already. Run the application from your PSP's main menu under GAME > Memory Stick. Do not turn your PSP off, unplug the AC Adapter while your PSP is updating. Doing so can render your PSP useless. Once the update has finished it will ask you to press either X or O, do so or you could brick your PSP.

Installing 1.50 Kernel Add-On PSP CLASSIC'S ONLY! IF ON A SLIM, THIS ISN'T FOR YOU! Extract the '150k_addon390' RAR. Connect your PSP to your PC via USB cable and do the following: Copy the 150k_addon folder found in the extracted RAR file you downloaded, and copy it to: 'X:/PSP/GAME/'. Rename the 1.50 File (download above) from 'EBOOT.PBP' to '150.PBP'. Place the 150.PBP in the root of your PSP folder. (ie 'X:/') Exit USB Mode. Run the application from your PSP's main menu under GAME > Memory Stick. Do not turn your PSP off, unplug the AC Adapter while your PSP is updating. Doing so can render your PSP useless.

hehe... u got cfw 3.90 even tot is not the latest 3.95 but u r able to play most of the games now ;D

here's for some goodlink on psphack
http://www.psp-hacks.com
http://forums.qj.net
http://forums.maxconsole.net/

*fw - firmware
*cfw - custom firmware

by the way, after spending whole afternoon go thru these articles.
I'm able to do unbrick now for ur PSP ;D keke.. dun k is phat n slim version ~