i put my USB stick in with the 3 Project Firestart disk images on it, but the USB symbol did not appear. i tried using basic to install it, but whenever i type in List i just get some text that says '"READONLY'. and i can't load it because if i do, it asks me to press play on the non-existent tape because it's a usb stick. i thought it was my firmware, so i downloaded the latest firmware off the official website and when i go to system information, it says "no firmware update found" for some reason. so i used a DIFFERENT usb stick and it STILL didn't work. how do i fix this?