Here is a step by step guide for installing 3.80 M33. Please note that you must be running 3.52 M33-3, or higher to begin this installation.
First grab the 3.80 M33 files and extract them.
1. Copy the UPDATE folder contained in the archive to X:/PSP/GAME
2. Download the 3.80 EBOOT, and then place it in X:/PSP/GAME/UPDATE
3. Navigate to the Game menu on the PSP and execute the program, it will not run unless there is 78 percent battery free.
4. Press X and the update process will start. Yes it may look similar to a regular Sony update but don't worry!
5. Once finished, the updater will ask you to press X or O to reboot. You MUST do this, otherwise you'll end up with a brick.
6. You've successfully installed 3.80 M33! Now download and install the latest M33 update by navigating to the Network Update icon located in the PSP's main menu screen (XMB). This will require an active WiFi connection. In case you do not have one, follow the manual instructions to apply the latest update here.
Installation Guide
First grab the 3.80 M33 files and extract them.
1. Copy the UPDATE folder contained in the archive to X:/PSP/GAME
2. Download the 3.80 EBOOT, and then place it in X:/PSP/GAME/UPDATE
3. Navigate to the Game menu on the PSP and execute the program, it will not run unless there is 78 percent battery free.
4. Press X and the update process will start. Yes it may look similar to a regular Sony update but don't worry!
5. Once finished, the updater will ask you to press X or O to reboot. You MUST do this, otherwise you'll end up with a brick.
6. You've successfully installed 3.80 M33! Now download and install the latest M33 update by navigating to the Network Update icon located in the PSP's main menu screen (XMB). This will require an active WiFi connection. In case you do not have one, follow the manual instructions to apply the latest update here.