Samsung DeX won't display on your monitor or TV
The USB-C port or cable is most likely the problem. Trying a different cable and port fixes it for most people in under two minutes.
Samsung DeX sends your phone's display to an external monitor or TV through a USB-C connection. When the connection fails, the port can be dirty, the cable can be damaged, or the monitor settings need adjustment. We'll clean the port, try a different cable, and check your monitor settings.
Risk: Medium
⏱ 10–15 minutes
Beginner
⚡ Before you start
- ✓Have a USB-C cable that supports data transfer ready (charging-only cables won't work)
- ✓Have access to a monitor or TV with HDMI input available
- ✓Make sure your Samsung phone is powered on and unlocked
Fix-IT-Bot will walk you through each step, just tap, no typing needed.
Skip, I just want a technicianCommon mistakes to avoid
- Using a charging-only cable — only data-capable USB-C cables will activate DeX
- Plugging into the wrong HDMI port on the TV and not checking the input selector
Signs you need professional help
- If you've cleaned the port, tried a different cable, checked the monitor input, and restarted both devices but DeX still won't display, give us a call — the USB-C port can need service or your monitor can have a hardware issue.
Book a technician
We can fix most issues remotely in 15 minutes. Book your weekend slot and we handle the rest.
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Most issues are resolved remotely in 15 minutes. Weekend appointments only, no parts, no in-home visit needed.
