I just got a slim ps2 with matrix infinity v 1.38 mod and i wanted to upgrade the firmware. so i downloaded the v1.75 firmware, and tried to upgrade it. i got to the screen where it says "press start to upgrade". i pressed start, but waited for a bit and didn't see anything happening on the screen, it stayed at the same initial screen for a while. so i then restarted the system. now my problem is, when i turn the system on, i just get a black screen with no video, anyone know what i can do to fix this?