How to play original 2.5 game with a PSP firmware of 2.0

[KuriPuck]

I've a original UMD game (Blood The Last Vampire), Chinese Subtitle with Japanese Dialogue, which requires the firmware to be 2.5. How can I play the game with a firmware of 2.0 without upgrading the system?

Thanks u & Cheers

[d3v1l]

idk, but maybe u should downgrade to 1.50, and wait for the 2.0 loader to update..now it supports 2.0 games, like gta, so i guess its just a matter of time before 2.50 games work aswell, because the 2.50eboot is allready decrypted..

[Grover212]

Downgrade your PSP to V. 1.50....
I use Run UMD v0.01 to load games V 2.0 or higher....