Okay, I went to a link with the readme for the 3.03 OE-A auto-installer, and if I'm not mistaken it says I need to also update my PSP firmware to 3.03.
1. Copy oeupdatemaker and oeupdatemaker% to /PSP/GAME if you are in firmware 1.50, or to /PSP/GAME150 if you are in 2.71 SE or 3.02 OE.
2.
Get the 1.50 and 3.03 Sony updates, and put them in the oeupdatemaker folder with the names 150.PBP and 303.PBP.
3. Run oeupdatemaker. It will generate the dxar file DATA.DXAR, which has the following hashes:
MD5: 03186D46D2F1B0ACD923098BEBC87281
SHA1: 3C80833A970EEA16A94D74DAFF6220889A9CEE4A
4. Copy 303oeflasher and 303oeflasher% to /PSP/GAME if you are in 1.50, or to /PSP/GAME150 if you are in 2.71 SE or 3.02 OE.
5. Move the DATA.DXAR file to the 303oeflasher directory.
6. Run the program. When it finishes, it will ask you to re-init the psp. When you do that, you will be in 3.03 OE-A.
Download:
3.03 OE-A
3.03 FW Update EBOOT
1.50 FW Update EBOOT
Easy 3.03 OE-A Installer
- discussion thread - | - help thread -
- source: Dark_AleX
Thanks DazSH