I wanted to write an answer but this covers almost everything that I wanted to say and more. Just a few more things: the claims you make sound 'too good to be

I wanted to write an answer but this covers almost everything that I wanted to say and more. Just a few more things: the claims you make sound 'too good to be true' and the video you show is not clear. What are you showcasing? Where is your product in the video? It's also not clear who the target audience is. You give an example, but I have never encountered a broken harddrive. The situation doesn't appeal to a lot of people. You might want to sketch more scenario's where your product would be helpful. You can even just aim the text directly to your target audience: "Are you an electronics hobbyist or engineer often struggling with X? Look no further!". You get the picture. Also, you might want to consider contacting some techbloggers and sending them free prototypes (this can actually backfire if they don't like it).