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Tuesday, February 5th, 2008

How to Install 1.50 Kernel Add-on for 3.90 M33 Custom Firmware

A Custom Firmware without the 1.50 Kernel add-on is only half a Custom Firmware. Without the 1.50 Kernel on your PSP, the whole purpose of the custom firmware is defeated. 1.50 Kernel is all about the homebrew apps. I have already installed the 1.50 kernel add-on on my PSP and it’s awesome. I could still use the remote control, the WiFi sniffer and a lot more homebrew applications. So how do you install it? It’s quite easy.

The Requirements

  • A Phat PSP with 3.90 M33 custom Firmware installed. This one does not work on a PSP slim but don’t fret, because there is one coming.
  • A USB Cable. This is used as a connectivity tool between the PSP and the computer.

The Installation Guide

  1. Download the 3.90 M33 Addon from Dark Alex’s website.
  2. Unzip and you will find the 150k_addon folder. Copy the 150k_addon folder from your PC to PSP in this directory: PSP/GAME/
  3. Download the 1.50 Firmware and place it into the root directory of your PSP.
  4. Disconnect your USB cable and then on the XMB, go to GAME>Memory Stick then run the 1.50 Kernel Add on update.
  5. Follow the onscreen instructions and wait. The PSP will restart automatically after the update has been installed.
  6. Congratulations. Go and get your homebrew applicatons now.

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41 Responses to “How to Install 1.50 Kernel Add-on for 3.90 M33 Custom Firmware”

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  1. 41
    em2x

    @nick
    r u refering to the universal remote for the psp? i’ve tried that before and it doesn’t seem to work for me… how u do it man?

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