active HDMI cables, embedded booster at both HDMI heads. You need to use the HDMI USB cable that comes with in the HDMI box to connect any USB port except on HUB, or any USB adapter (Does not include USB adapter in box). The HDMI USB cable is 1.5 feet. Why we need use this HDMI USB cable? It is necessary to connect the HDMI USB cable since some HDMI slots, such as on USB HUB or on HDMI SWITCH, cannot provide enough power for the fiber optic HDMI cable. The HDMI fiber optic cable is an active cable, it needs enough power to work properly. If the power is insufficient, there will be a black screen, screen flicker, no signal and other problems. Please connect the fiber optic HDMI cable to the HDMI USB cable and then to the HUB or the SWITCH. And fiber optic HDMI cable is directional. The directional HDMI meaning that the source end of HDMI is required to connect to sources (must plug this end to HDMI output from source like DVD/computer/PS5/Xbox...), and other end is display to your monitor/TV/projector. Please kindly make sure to understand there instructions before you choose our fiber optic HDMI cable to avoid the returned purchase because of improper use.
Samsung Smart TV Q80T has a BUG and cannot recognize Apple TV. After Q80T selects the input source, it stays at "Scanning for devices" for a long time, and then the Unknown window appears. "You can set up this device manually so you can control it with your Smart Remote. Do you want to set it up now?" Select the "Setup" button to enter the manual setup, but you can't find apple tv. You can only exit the manual setting and select the "Later" button. After the screen flickered several times, the apple tv 4K window was displayed. Do other Smart TVs have similar Bug.
Some monitors and TVs have multiple HDMI slots, but only one HDMI slot is HDMI2.0, which supports HDCP2.2. Please try another HDMI slot to plug in the HDMI cable.
Sometimes when the HDMI cable is inserted, the player fails to read the TV's EDID and cannot display 4K or a black screen. Please replug the HDMI cable and let the player read the TV's EDID again.
HDMI adapter or HDMI switch or HDMI plate will weaken the HDMI signal, causing a black screen or screen cut in/out. Please use only one HDMI cable, one end connected to the player, the other end connected to the screen, without any HDMI adapter or plate, and so on.
To use ARC(eARC), first plug the HDMI cable into the HDMI slot of a TV that supports ARC(eARC). Second, enable ARC(eARC) in the TV's settings menu. To use CEC, enable CEC in the TV's settings menu.