How to Install the 1.50 kernel Add-on for 3.80 M33 Custom Firmware
This is the third guide I’ve written today. I was checking Dark Alex’s website a few minutes ago and I saw the 1.50 Kernel Add-on for the 3.80 M33. That was pretty quick. Dark Alex is really amazing. I downloaded the 1.50 kernel Add-on for 3.80 M33 and then installed it on my PSP. It was actually quite easy. The files I downloaded has no instructions so here’s the simple guide on how to do it. But like all of my other guides, there’s always a very tiny chance of bricking your PSP.
The Requirements
1. You will need a Fat PSP installed with 3.80 M33-2 custom firmware. The 1.50 Kernel Add-on does not work on the PSP Slim. Follow my 3.80 M33-2 custom firmware installation guide if you’re not into it yet.
2. 75% Battery or more. Why? So you don’t brick your PSP when it shuts off in the middle of the update because you forgot to charge the battery.
3. A USB Cable to connect your PSP to your computer.
Please make sure you pass all the requirements before getting on with the installation.
The Installation Guide
- Download the 1.50 Kernel Add-on for 3.80 M33 and the official 1.50 Sony Firmware.
- Connect your PSP to your computer via USB cable and copy the 150.PBP file you’ve downloaded to the root of your memory stick.
- Extract the 1.50 kernel Add-on file you’ve downloaded anywhere on your computer. There should be 4 files. Copy these files to your memory stick in this directory: ms0:/PSP/GAME380/UPDATE. If you don’t have the GAME380 and the UPDATE folder then you must create it manually.
- Disconnect your PSP to your computer and go to your XMB menu. Scroll to GAME > Memory Stick and run the 1.50 Kernel Addon program. Follow the on screen instructions and wait for the flashing of files to get finished.
- Enjoy your homebrew capable 3.80 M33-2 PSP!
For questions and comments, please use the comment form below.
April 15th, 2008 at 7:59 am
@david:
Are you sure you have 150.pbp on your root directory?
Download it again from a respective site bro.
Or re-download it again from the link Stylemo gave.
April 15th, 2008 at 4:46 am
HELP!!!!
I HAV A PSP W/T CFW 3.90 M33-3
I FOLLWED THE INSTRUCTIONS BUT MY PSP SAYS “INCORRECT OR INEXISTANT 150.PBP AT ROOT”
ANY IDEAS??
April 8th, 2008 at 7:29 am
@Pablo: You need to install one of DArk Alex’s custom Firmwares. But installing a custom firmware is never easy if you have the official firmware. I suggest you research more on this topic. But the first step is acquiring Pandora’s battery.
@troh: Yes troh. You need to reinstall 1.50 kernel again.
April 7th, 2008 at 2:39 pm
Just upgraded to 3.80 M33. Do I still need to install 1.50 kernel even if i installed it when i was at 3.71 M33-2?
March 23rd, 2008 at 5:13 am
Im running my psp on sony’s version 3.80
What do i need to do to allow my psp to be able to play my own psp isos and psx games?
Ive never attempted to any type of downgrade
I appreciate the reponses
February 7th, 2008 at 11:52 pm
@Elliah: Format your MS using your PSP. From there, you’ll know where ti place your backed up games.