Not 100% sure. He didn't bring the box with instructions back. How do I check that? I tried clicking the power button in different numbers, 3 and 5, etc..
It is 3 clicks to get into the menu, but those 3 clicks must be when the mod is on. You can also check to see if the mod is on by pressing the up/down buttons at the same time. Even in stealth mode, that should show the lock/unlock icon.