So the device is here… But it is not what I wanted…
![](https://blog.yifangu.com/wp-content/uploads/2020/06/hdmi1.jpg?w=491)
Apparently there are two types of this device on eBay that look identical, one with a microUSB port, one without. I, of course, accidentally bought the one without the microUSB port. So what is missing from the non-microUSB version? I suspect that if I can figure out the parts missing from the board and fill these in, I might add the missing USB-to-PC functionality I am looking for. The only way to find out is to open it up.
![](https://blog.yifangu.com/wp-content/uploads/2020/06/hdmi2.jpg?w=952)
Okay, the PCB layout looks OK to me, and there is no major part missing from the board. Wait a second: There is already a microUSB port there on the board, the only thing missing on this product is a cut-out for the port on the casing.
That’s… That is one of the worst designs I’ve seen in a while. It took some serious courage to make this design decision.
The only thing left for me to do is to dremel out a hole on the casing.
![](https://blog.yifangu.com/wp-content/uploads/2020/06/hdmi3.jpg?w=574)