For V7/V8, you MUST have an USB Flash Device that is recognized by Code Breaker PS2. Download this file -->
upgrade.bin <-- on your USB Flash Device in the root directory. (The same places you put the Day1 files.) Once you have this file on your USB Flash Device, plug in the device to your PS2's USB Port, insert your Code Breaker PS2 V7.1+ disc & Press the Reset button.