What screw do you mean? My Mhz are 300 if I put  450Mhz  it doesn't work well. If I bought a hub that admitted more voltage, would it work too?

Thanks!

Hi,

I have a problem.

I have two BM1387, but one of them does not give me the necessary power, I am using a hub 2.0 called sipolar.

https://m.media-amazon.com/images/I/41AAYFV8FAL.jpg

The problem is this:

https://ibb.co/HdmJnvP