How to Update to 3.80 M33-4 Custom Firmware
It seems that Dark Alex has been working overtime again. The latest update for the 3.80 M33 custom firmware is now out. And again for noobs out there who’s looking for an easy guide on installing these updates, this is the right place.
There’s actually 2 different ways on how to update your 3.80 M33 custom firmware to 3.80 M33-4. The first one is doing it manually by downloading the update file and copying it to your PSP. And the other one is the easier way - thru the PSP’s native Network Update. Now that is very cool. So hold on to your seats as I give you the details on how to install the 3.80 M33-4 update.
The Requirements
- You must have 3.80 M33 Custom Firmware already installed on your PSP. If you don’t have it yet, follow my guide here.
- A sufficient battery so your PSP won’t turn off in the middle of the update.
- A Good Wifi Connection
- A USB Cable (optional)
If you have a WiFi connection, follow the steps below.
- On your XMB Menu, just go to Settings > Network Update then choose your connection. The PSP will then detect if you have the latest custom firmware. If you don’t have it yet, your PSP will automatically download the update file.
- After the update has been downloaded, you will be asked to press X or O to begin the update. Press the corresponding button, the screen will turn black and the updated files will be flashed.
- After the flashing, your PSP will restart by itself. Enjoy!
If you don’t have WiFi connections, then you should follow the steps below.
- Download the 3.80 M33-4 update.
- Extract the contents of the file you’ve downloaded anywhere you want on your computer.
- connect your PSP to your computer using the USB cable. Copy the UPDATE folder to your PSP in this directory: ms0:/PSP/GAME/
- Disconnect your PSP from your computer and go the XMB menu. Go to GAME > Memory Stick then run the M33-4 update program. Follow the onscreen instructions and wait for 10 secs.
- Enjoy your newly updated PSP.
January 21st, 2008 at 9:15 am
Ngayon 3.71 m33-4 ang gamit ko at psp slim unit ko, kaso natatakot ako upgrade to 3.80 m33-4 after reading yung mga reviews sa ibang sites dahil di na raw gumana yung mga ISO at CSO games nila, at kung gumana naman naglag raw yung mga games. Pasensya na bago lang me sa PSP eh, thanks
January 20th, 2008 at 8:54 pm
@Renz: Ang purpose ng 1.50 Kernel ay para mapatakbo mo yung mga homebrew applications like wifi sniffer, psp comic reader, etc… gagana pa rin yung mga games mo kung yan ang gusto mo lang talaga malaman.
January 20th, 2008 at 8:33 pm
Ano purpose ng 1.50 kernel pag wala ba siya sa 3.80 m33 di ba gagana yung mga games
January 20th, 2008 at 12:55 pm
@cmlp13: the update requires enough battery so that your PSP won’t turn off in the middle of the update bricking your PSP. just follow the rules. it’s for your own good, really.
January 20th, 2008 at 11:13 am
Why does the battery absolutely have to be at 78%?
January 20th, 2008 at 7:20 am
Stylemo,dunno what to say.. YOU ARE THE ONE! THX AGAIN FOR A WONDERFUL GUIDE
Keep up this work 
January 20th, 2008 at 12:52 am
I update my PSP to 3.80 without knowing my ISO would no longer work
Is there a risk that updating to M33-4 will cause my PSP to no longer work?
Any help welcomed
January 19th, 2008 at 5:38 pm
kuya salamat sa guides mo steg!
pede ka rin ba gumawa ng guide para sa pandora battery
wakekekeke
January 19th, 2008 at 1:03 am
do you need 1.50 kernel add-on for 3.80 M33-4
January 17th, 2008 at 10:32 pm
[...] ***Update : 3.80 M33-4 Custom Firmware update has been released. Install it using this guide. [...]