3.03 OE-A and B

3.03 Open Edition is a custom firmware that combines 1.50 and 3.03.
For 3.03 OE-A you have to get the 1.50 update eboot and the 3.03 update eboot. With an app in 3.03 OE-A you will combine those update eboots and use that to install the firmware.
3.03 OE-A (for 1.50 or 3.02 OE-A or B)
3.03 OE-A (must have 3.03 OE-A installed)
3.03 OE-B (must have 3.03 OE-A or A' installed)

3.03 OE: Dark_AleX