Guides
Practical fixes and explanations for wired phone-to-TV casting. Start with the troubleshooting guide if the cable is not working.
Troubleshooting
Phone Charging but No Video Over USB-C to HDMI? Here Is Why
Your phone charges through the USB-C to HDMI hub but the TV shows no signal. A decision tree that finds whether it is the phone, the adapter, or the plug.
USB-C to HDMI No Sound on Android: How to Fix TV Audio
Picture but no sound over USB-C to HDMI on Android? Check Bluetooth headphones, media volume, TV audio settings, the HDMI audio toggle and your adapter.
USB-C to HDMI Not Working on Android? Fix It Step by Step
USB-C to HDMI not working on your Android phone? Check DisplayPort Alt Mode support first, then cable type, HDMI input and settings, plus a Wi-Fi fallback.
How-to
Connect an Android Phone to a TV With a USB-C to HDMI Cable
Connect an Android phone to a TV with a USB-C to HDMI cable, step by step: what you need, choosing the HDMI input, hotel TV tips, and clean photo casting.
How to Cast Phone to TV Without Wi-Fi: Every Wired Option
Cast your phone to a TV without Wi-Fi using a USB-C to HDMI cable, Samsung DeX, or MHL on old phones. Hotels, presentations, and phones with no video out.
iPhone 15 USB-C to HDMI: Connect to a TV Without an App
iPhone 15, 16, and 17 output video over USB-C to HDMI with no app. Which cable to buy, mirroring vs second-screen apps, HDCP with Netflix, and charging.
Explainers
Does My Phone Support USB-C to HDMI? Check DP Alt Mode
Find out if your Android phone supports USB-C to HDMI video output. What DisplayPort Alt Mode is, how to check your model, and which brands include it.
Netflix Black Screen With USB-C to HDMI? HDCP Explained
Netflix goes black over USB-C to HDMI because of HDCP copy protection. Which streaming apps block phone-to-TV output, why your own files work, what does.
Samsung DeX vs Screen Mirroring: Which to Use on a TV
Samsung DeX puts a desktop on the TV, mirroring copies the phone screen. Which Galaxy models support DeX, how to switch, and when to cast media instead.
USB-C to HDMI 4K 60Hz on Android: What Determines It
Get 4K 60Hz from an Android phone over USB-C to HDMI. What the phone, adapter and TV each control, when to pick 1080p, why 4K flickers, what HDR to expect.
USB-C to HDMI Cable vs Adapter vs Hub: Which One to Buy
USB-C to HDMI cable, adapter, or hub with Power Delivery: which to buy for an Android phone. Thunderbolt labels, 4K30 vs 4K60, HDMI 2.0 vs 2.1, and length.