Why can't I duplicate laptop's screen to HdTv?

Why won't my mhl adapter make my htc screen show up on my hdtv?

  • I bought an mhl adapter too hook up to my hdmi cord to connect to my hdtv so that I could view my phone screen on the tv....when I hook it up, nothing happens, the phone doesn't even acknowledge it's being connected..

  • Answer:

    Many mhl adapters require external power. Plug your phone's charging cable into the adapter's micro usb port.

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