HTC One M9 Black Screen

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Jan 14, 2018 9:26:19 PM via Website

Hello Community,

i have a problem with my HTC One M9, I bought the phone on the internet, but I did not notice that one has made a custom rom. When it arrived with me and I turned it on, it was right in boot loader mode. then I tried a few firmwares, rather the intended version, but no one wanted to be flashed. then I tried it with adb sideload but hopelessly. And now I tried to turn it on but I only get a blackscreen. on my PC it will be displayed like this: Qualcomm HS-USB QDLoader 9008 (COM4). can anyone help me?

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My english is too bad: D