How to Install 3.90 M33 Custom Firmware on Your PSP
So I have updated my PSP to 3.90 M33 already. It works kinda faster now. The installation process just only took me less than 5 minutes. So how did I do it? Well here you go. Another great tutorial for all PSP lovers out there.
The Requirements
Everybody must read this. This is very important. I don’t want any of you to brick your PSPs so please read this. Thank you.
- A PSP (Phat or Slim) with installed custom firmware 3.52 M33-4 or higher. My PSP had 3.80 M33-5 custom firmware.
- A USB Cable to connect your PSP to your computer
- 100% fully charged battery. This is just to be sure your PSP won’t turn off in the middle of the update. It’s also good if you have your PSP plugged into your AC Adaptor.
The Installation Guide
- Grab the 3.90 M33 installer pack and unzip it anywhere on your computer.
- Using the USB Cable, connect the PSP to your Computer then copy the UPDATE folder from your computer to your PSP in this directory: ms0:\PSP\GAME
- Disconnect your PSP from your computer then on your PSP XMB, go to GAME>Memory Stick then run the 3.90 M33 update. The update will verify your 3.90 eboot file and after verification you will be asked to execute the update. Execute it.
- Follow the instructions on the SCE updater. After the update, press X or O to manually reboot.
- Congratulations. You now have a 3.90 M33 Powered PSP.
February 27th, 2008 at 8:17 am
@Jin: If you’ve got a slim which I think you have, you don’t need the 1.50 kernel. You can update it straight away from 3.60 M33 to 3.90 M33. Aren’t you reading the requirements? I wrote there that you need 3.52 M33-4 or higher. Which means if you have 3.60 M33 then you passed the requirements and you can safely upgrade your device as long as you follow the instrcutions. I’m not gonna be responsible for brickages here, ok. I haven’t bricked one PSP in my whole hacking lifetime. That’s why I’m here to share my safe methods to you guys out there that I know who need help.
February 26th, 2008 at 2:44 pm
does it mean i cnt update to 3.90 m33-2 if i dun have 1.50 kernel? n oso can someone plz confirm if i can update 3.60 m33 straight to 3.90m33-2? i am upgrading psp for e first time.. am v worried abt bricking it so appreciate if someone can help..
February 25th, 2008 at 10:16 pm
i had the same problem as swedish and hui. and i did what u said about changing the kernel thing. but i get an error msg like “checking id disgeneration”?
February 25th, 2008 at 11:51 am
the problem is that you are not in the proper kernel. Restart your psp and go to the recovery menu (ie hold down R when turning the psp on). Go to configuration and you will see the line:
Game folder homebrew (currently: 1.50 kernel)
you need to select this and press x to change the kernel.
Exit the recovery menu, try the installation again and it should work fine.
February 24th, 2008 at 12:02 am
Got the same problem as HuiShan, i updated from 3.52 m33-4.
It’s been stuck for 10 minutes now.
started with
Unpacking…done.
Please wait…
been so for 11 minutes now, should i wait or reboot or smth?
February 23rd, 2008 at 3:37 pm
Need some help here! I run the update for 3.90 on my psp 3.52 m33-4 custom firmware. but it struck at please wait for more than 5 minutes. what should I do?
February 23rd, 2008 at 9:25 am
can anyone confirm if i can update 3.60 m33 straight to 3.90 m33-2? any risk of brickin the slim psp? thx!
February 16th, 2008 at 7:26 pm
Can i use an 8 gb memory stick for this? cause i have an imitation 2 gb memory stick and so which stick should i use?
February 16th, 2008 at 12:43 am
@stylemo:
sure master! watch want me to do?
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i’m kinda getting impatient waiting for 1.50 slim kernel already.
February 15th, 2008 at 10:17 pm
Thanks for the info darwin v. I’m gonna post some updates tomorrow. I’m kinda busy with projects right now. No time to blog. Will you help me out then?