Wireless HDMI, also known as wireless video transmission, allows you to send audio and video signals from a transmitter (TX) to a receiver (RX) without the need for physical HDMI cables. The Lemorele wireless HDMI product is widely used in meeting rooms, home theaters, camera monitoring setups, and gaming environments. This guide breaks down the most common user problems and provides detailed, experience-based solutions to help you identify and fix issues efficiently.
1. Display-Related Issues
1.1 The Screen Is Blue or Blank but Audio Plays
This usually happens when the HDMI signal isn’t transmitted properly.
Start by ensuring every connection is firmly seated. The HDMI plug should click or feel snug when fully inserted.
Next, confirm the receiver is set to the correct input source—try switching between HDMI 1 and HDMI 2 on your TV or monitor.
If the transmitter relies on USB power, make sure its indicator light is solid. Flickering lights often indicate unstable power. Use a 5V wall adapter instead of a TV USB port for reliable output.
If you still see a blue screen, temporarily reduce the source device’s resolution to 1080p, then reconnect.
1.2 The Receiver Stays on the Lemorele Standby Screen
The Lemorele standby screen means the receiver is powered but not receiving video.
Double-check that the transmitter is plugged into the source device and is powered on.
For HDMI transmitters, verify the USB cable is supplying steady power.
If you’re using a USB-C transmitter, make sure your device supports video output (DisplayPort Alt Mode). Not all USB-C ports transmit video signals.
1.3 The Picture Freezes or Shows Distortion
Video stuttering, tearing, or artifacts usually come from signal interference or inconsistent power.
Keep the transmitter and receiver within a clear line of sight—avoid placing them behind walls, cabinets, or metal structures.
Move them away from Wi-Fi routers and Bluetooth speakers.
For best stability, power both units with separate 5V adapters rather than USB ports on other devices.
2. Audio-Related Issues
2.1 There’s Video but No Sound
Check the sound settings on your computer or signal source. Change the output device to HDMI or Wireless Transmitter Audio.
Some TVs require you to select “HDMI Audio” in a separate audio input menu.
Ensure your HDMI cable supports audio; older or cheap cables may not.
If no sound plays, disconnect both devices, wait ten seconds, then reconnect them to reset the audio handshake.
2.2 The Sound Is Delayed or Out of Sync
A small delay (0.05–0.1 seconds) is normal, but anything beyond 0.3 seconds suggests interference.
Look for 2.4 GHz Wi-Fi devices nearby that may share frequencies.
Switch to a 5 GHz band or change the channel through the receiver’s settings.
Also confirm the receiver is powered by a stable, independent adapter—low voltage can add latency.
3. Pairing and Connection Problems
3.1 How to Pair a New Transmitter
All Lemorele wireless kits come paired from the factory, so they should connect automatically once powered.
If you need to re-pair them, press and hold the Pair button on the receiver for about five seconds until the LED begins flashing. Then plug in and power on the transmitter. The lights on both devices should turn solid when pairing is complete.
3.2 The Devices Lose Connection Every Time They Restart
If your receiver loses its pairing information, it’s likely from a power interruption.
Repeat the manual pairing process described above and use a consistent power source to prevent random resets.
3.3 Some Receivers Don’t Connect in a Multi-Receiver Setup
A single transmitter can only handle up to four receivers at once.
If you connect more than that, extra receivers may fail to link or will lag several seconds behind.
Stay within the supported range for smooth, synchronized playback.
4. Computer Recognition and Driver Issues
4.1 The Computer Doesn’t Respond When the Transmitter Is Plugged In
After plugging it in, look for a virtual CD drive appearing in This PC or on your Mac desktop.
Open it, run the installation file, then unplug and reconnect the transmitter.
The LED should stay steady, and your display should mirror automatically.
HDMI and USB-C models do not require drivers—they work as true plug-and-play devices.
4.2 The Computer Says “Device Not Recognized”
Try another USB port—preferably one directly on the computer instead of a hub.
Ensure the port provides enough power; the light on the transmitter should stay solid, not blink.
If multiple computers show the same message, please find the technical support team from Lemorele's Get Support, or download the latest driver from Lemorele's Driver Download.
5. Lag and Signal Stability
5.1 The Video Feels Delayed
Typical wireless HDMI delay is between 50–80 milliseconds—barely noticeable.
If the delay becomes obvious, check that there’s nothing blocking the signal path. Even a thin wall can add delay.
Avoid using the same channel as your Wi-Fi router. You can log into the receiver’s web dashboard and change its frequency band to reduce interference.
5.2 The Image Freezes or Drops Intermittently
Check power first. Unstable or low-voltage power is a leading cause of signal loss.
Keep the transmitter and receiver within 10 meters (about 33 feet).
If your environment has many wireless devices, consider using a 5.8 GHz model for better resistance to interference.
6. Compatibility and Supported Features
6.1 Does It Work with Zoom, Teams, or Google Meet?
Yes. Lemorele wireless HDMI and USB-C transmitters appear as a standard secondary display.
You can share that screen in video calls or streaming software exactly as you would with a wired monitor.
6.2 Is It Compatible with Sky Q Boxes or Game Consoles?
Yes. All HDMI and USB-C transmitters support HDCP 1.4, required for viewing protected content from Blu-ray players, cable boxes, or gaming consoles like PlayStation and Xbox.
6.3 Can I Mix Different Transmitter and Receiver Types?
Some HDMI and USB-C models within the same series can inter-pair, but USB-A transmitters depend on driver-based operation and cannot be used with other receiver types.
Always match transmitters and receivers from the same model line for stable performance.
7. Power and Supply Issues
7.1 The Receiver Keeps Restarting
Frequent restarts are almost always caused by insufficient power.
Check the adapter’s label—it should output at least 5V / 1A.
If you’re using a TV’s USB port for power, replace it with a dedicated wall adapter.
Avoid long USB extension cables or low-quality chargers that can drop voltage.
7.2 Why the Transmitter Needs USB Power
An HDMI port only sends a small 5V signal for detection, which isn’t enough to run the transmitter.
The extra USB cable provides continuous power needed for wireless transmission stability.
7.3 Can I Use a Power Bank?
Yes. A quality power bank with stable 5V output can power either the transmitter or receiver, making the setup portable and convenient for travel or temporary setups.
8. Additional Settings and Customization
8.1 Can I Change the Standby Wallpaper or Blue Screen?
No. The Lemorele standby interface is built into the system and cannot be customized with personal images or logos.
8.2 Will Multiple Kits Interfere with Each Other?
Each kit is factory-paired with a unique encrypted ID, so they won’t cross-connect or interfere.
However, using more than four kits in the same room can overcrowd the frequency band and reduce stability.
8.3 Can I Monitor the Transmitter Feed on My Phone?
Some models, such as the R800, support mobile monitoring.
Install the companion app, connect your phone or tablet to the transmitter’s Wi-Fi signal, and you can view the live video feed in real time—perfect for photography or on-site setups.
8.4 How to Change the Receiver’s Name, Password, or Resolution
Certain models include a web-based control panel.
Connect your computer to the receiver’s network, open the listed IP address in a browser, and you’ll find options to rename the device, change the password, select output resolution, and switch frequency channels.
9. Best Practices and Maintenance
9.1 How to Maintain the Best Video Quality
Keep a direct line of sight between the transmitter and receiver.
Avoid thick walls, metal obstructions, or other wireless devices operating nearby.
Stay within 10 meters (33 feet) for reliable performance.
Ensure good ventilation to prevent overheating, use stable power adapters, and update firmware periodically.
9.2 Is the Wireless Signal Secure?
Yes. Lemorele systems use point-to-point encryption and operate independently from your Wi-Fi network.
This ensures that no third-party devices can detect or intercept your video stream.
