This is just gonna be a quick guide about installing 3.90M33 and the 1.50kernel add-on for the PSP-Phat. Enjoy!


3.90M33 Installation
What you need:

    * A PSP with 3.52M33-3 firmware or higher.
    * These files:
    * 3.90 M33 firmware
    * 3.90 Sony Update

Quote:Step 1: Download the required files.

Step 2: Copy the "UPDATE" folder from 3.90M33 into the "PSP/GAME" folder of your memory stick.

Step 3: Rename the 3.90 Sony Eboot "390.PBP" and place it into the "PSP/GAME/UPDATE" folder along with 3.90M33.

Step 4: Run the program from your PSP. The official Sony Updater will then update your PSP to 3.90M33.

Step 5: When it ask to reboot by pressing X or O, do so.

Changes:

- 3.80 » 3.90
- March33 NO UMD: fixed (yet another) bug related with exiting with home. (infinite semaphore wait)


Changes in updater:

- The degeneration check and correction of IDS keys happens too in 3.71 now.
- Added code to download 3.90 PBP from net via wifi.
Note that his code is not yet 100% stable, it may crash when selecting AP. In that case,
reinit the installer.
- L+triangle has been restored as method to bypass battery.
If you already have 390.PBP keep those buttons pressed until you see "Veryfing 390.PBP".
If the 390.PBP is being downloaded bia wifi, press those buttons at the end of download until
you see the previous sentence.


Congratulations, you have just installed 3.90M33!





1.50 kernel add-on
What you need:

    * A Phat PSP with 3.90M33
    * 1.50 Kernel Add-On
    * 1.50 Sony Eboot

Quote:Step 1: Download the required files.

Step 2: Copy the "150k_addon" folder to the "PSP/GAME" folder of your memory stick.

Step 3: Rename the 1.50 update to "150.PBP" and place it in the root of your memory stick.
Your files should be something like:(E is the drive letter)
E:\150.PBP
E:\PSP\GAME\150k_addon

Step 4: Run the 150 kernel add-on from your memory stick.

Congratulations, you now have 3.90M33 and the 1.50 kernel add-on!