Apple Users, if you are experiencing any HDMI display, Ethernet connectivity, USB, or card reader issues, first complete an SMC reset.

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    Paul Golding

    This fails when I try it on my Macbook Pro 2017

    2.5 GHz Dual-Core Intel Core i7

    Have never achieved a HDMI output. USB and power thru functions are fine.

    Failed before and still fails after an update to Big Sur. Any firmware updates coming??

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