Banggood Dear Nicholi1120, Thank you for your feedback and we are really sorry for all the inconvenienced caused during your shopping and looking forward to solve your problem.The C-C port must be used to split the screen. USB-C only supports charging data transmission and cannot split the screen. And the split screen port must be the C port to the C port, which is the cable of the packaging box.If your questions have not been solved yet, please do not hesitate to contact us via the link: https://www.banggood.com/es/Contact-Us_hi111 and provide more details about your question so that we can confirm the case as soon as possible and solve it efficiently. And we will reply and offer you the best solutions after receiving your email within 24-48 hours. Best regards, Banggood Team

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zasranez I have Xiaomi Mi Max 3. I'm afraid it doesn't support...

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geokart89 i have Samsung A70 same ...no signal

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BG129134422 me too

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