oh forgot to mention - there is a weird thing that happening when @ at flashing image stage
Theres 2 options -
First one being - flash box wait for flashing green light
second thing - if your pen drive has a small light on it - wait until that stops flashing
When either of these have happened unplug box remove pen drive and plug back in
Noticed that happened with me first time i flashed it the green light flashed but then another time i flashed an image there was no flashing green light but the light on my usb pen had stopped flashing
hope this makes sense lol