User Guide

FAQs

1. No signal on display.

USB-C to HDMI Cable

(4K@30Hz)

Please feel free to contact us if you need any help.

You will get a friendly and efficient response within 18 hours.

1. Only works for DP Alt Mode supported devices,

meaning Thunderbolt 3 and USB-C 3.1 Gen 2 or up

devices. E.g. Thunderbolt 4, USB-C 3.2.

2. UNI-DIRECTIONAL from USB C source device to

HDMI target screen.

3. For USB-C 3.1 Gen 1 devices, please kindly check if

they support DP Alt Mode. Contact us if you are not so

sure.

4. Not for charging.

Make sure the USB-C port of your device supports

video signal output (DP Alt Mode).

b. Make sure your laptop is connected to AC power.

c. For some displays that do not automatically detect

and switch input sources, please adjust manually to

select the correct HDMI input source.

d. For displays with multiple HDMI ports, try with

another one.

e. Make sure all connections are tight, and then reboot

your devices to see if there is any difference.

f. Try to update firmwares from manufacturer official

websites. E.g. motherboard BIOS, UEFI of the laptop.

a. Lower the resolution and refresh rate.

b. Dust accumulation may lead to poor connection.

Please wipe the ports with an insulated cotton pad

before connecting.

Notice

Using the Premium Cable

(CH13)

Signal output device

(*DP Alt Mode)

WARRKY USB-C to

HDMI Cable

2 . Screen is flickering.

USB-C

HDMI

Signal input device

(HDMI 1.4/up port)

PAGE 1
Using the Premium Cable FAQs 1. No signal on display. a. Make sure the USB-C port of your device supports video signal output (DP Alt Mode). b. Make sure your laptop is connected to AC power. c. For some displays that do not automatically detect and switch input sources, please adjust manually to select the correct HDMI input source. HDMI (CH13) USB-C USB-C to HDMI Cable (4K@30Hz) d. For displays with multiple HDMI ports, try with another one.
PAGE 2
3. No audio a. System Preferences →> Sound →> Output. Change the audio output from your laptop to TV or other devices. b. Update Realtek Audio Driver for Windows 10 (64-bit) or later Audio Driver from the manufacturer Official Website. ! 4. Stop working after a while a. Re-plug and make sure all connections are tight, then reboot your devices. b. Dust accumulation may lead to poor connection. Please wipe the ports with an insulated cotton pad before connecting. c.