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
- Download the 3.90 M33 Addon from Dark Alex’s website.
- Unzip and you will find the 150k_addon folder. Copy the 150k_addon folder from your PC to PSP in this directory: PSP/GAME/
- Download the 1.50 Firmware and place it into the root directory of your PSP.
- Disconnect your USB cable and then on the XMB, go to GAME>Memory Stick then run the 1.50 Kernel Add on update.
- Follow the onscreen instructions and wait. The PSP will restart automatically after the update has been installed.
- Congratulations. Go and get your homebrew applicatons now.
June 17th, 2008 at 7:28 pm
Well done I keep up the good work i have gone from 3.40oe-a to .390 m33-3 with 1.50 addon in 25 mins!!!! excellent
May 30th, 2008 at 9:30 pm
@LTJ:
no prob with my suggies bro.
glad to help!
May 30th, 2008 at 6:20 pm
@dcv1979:
thanks for the pointers. Seemed to be an issue with the 150.PBP file. Downloaded from an alternate source and it worked fine.
May 30th, 2008 at 1:09 am
@LTJ:
try to redownload a new copy of the kernel add-on.
if the problem persists…try putting the kernel add-on in the GAME150 folder…
May 29th, 2008 at 10:03 pm
I keep getting the message ‘Cannot decrypt updater prx’.
Do I have the 1.50PBP file in the wrong location? Currently in the root of the memory stick?
Got 3.90M33.
Any help greatly appreciated.
May 15th, 2008 at 11:20 am
@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?