Only 720P is displayed, not 1080P@60Hz

1. The receiver (RX) will display the appropriate resolution for the connected TV (or monitor) (the output specification is up to 1080p, i.e., if the TV is only 720p, it will only display 720, and if the TV is 4K, it will only display up to 1080).

2.When you are using youtube, if you set 720p on your phone, then the highest quality of the TV output will only be 720p, so you need to set the appropriate display Settings on your phone in advance.

The quality of the painting deteriorates

1. Most portable screens are small in size and have relatively low resolutions, which can cause a decrease in picture quality. 

There's no audio on the receiver

1. Please ensure that the connected display screen has built-in speakers for audio output, otherwise there will be no sound.
2. The user can try connecting the RX receiver's HDMI output to a TV using an HDMI cable to check if there is audio output. Most portable displays do not have built-in speakers, so they will not produce sound.
3. Since portable screens usually only have a mini-HDMI port, if the screen does have built-in speakers, make sure that the HDMI adapter being used supports both video and audio conversion. If the adapter only supports video conversion, there will be no audio output. 

The screen shows no signal, it has been yellow "AIR HD" starts.

1. The receiver (RX) will display "No signal..." only in one case: when the signal source (phone) does not support video output via the Type-C port (i.e., it does not support Alt-mode).
2. Please first test with a laptop (or phone) that supports video output to ensure that our product is functioning correctly and providing stable output.

I started with a powerpoint presentation, but I couldn't show anything else on the TV - I tried youtube, other videos, Word documents - and the TV screen still showed my MacBook screensaver.

1. After the transmitter has been connected go to System Settings >> Displays. Then select Mirror.

The screen flickering or jumping is not stable

1.  To resolve the issue you’re experiencing, please follow the steps below:
2.  Make sure the receiver (RX) is connected to a TV with a 1080p resolution and that the USB power supply is sufficient (we recommend trying an external power adapter for the RX).
3.  Ensure your iPhone has enough battery power to supply the transmitter (TX). It is recommended that your phone have more than 50% battery or try using an external power source for the TX.
4. Ensure that your iPhone’s iOS is updated to the latest version.
5. If all of the above are confirmed, please have a friend or family member try using a different phone and test again. 

Why the HDMI SPLITTER connected to My sound bar, and it did not work？

1. Our splitter only supports HDMI input and does not support ARC ports. If your soundbar only has an ARC port, it will not be compatible with our splitter.  

Does the product flicker during use?

1.  Troubleshooting methods:
2. Lower the resolution
3. Try using a shorter HDMI cable
4. Start by connecting only one cable and test it

No Picture When Switching (1-2 seconds of no picture when switching signal sources)

1.Directly Connect the Device to the TV

• Connect the HDMI device directly to the TV’s HDMI input port, bypassing any intermediary devices (such as an HDMI switch). Check if the no picture issue still occurs. If there is no issue with a direct connection, the problem may be with the switch or other devices.

2.Replace the HDMI Cable

• Replace the HDMI cable and see if this resolves the issue. Choose a high-quality cable that meets the HDMI 2.0 or HDMI 2.1 standards, as this helps ensure stable signal transmission and reduces latency.

3.Replace the Signal Source Device

• Try switching to a different HDMI signal source (e.g., a different device or a different HDMI port) and check if the no picture issue still appears. If only one specific signal source device causes the no picture issue, the problem may be with the device's output.

4.Adjust the HDMI Signal Source Output Settings

• Ensure that the signal source device (such as a gaming console, set-top box, etc.) is set to a resolution compatible with the TV. A resolution that is too high or an unsupported refresh rate can cause no picture. Adjust the device's resolution to match the TV's display capabilities.

No Picture During Normal Use (Occasional no picture during regular viewing)

 1.Directly Connect the Device to the TV

• Connect the HDMI device directly to the TV, bypassing the HDMI switch, and check if the no picture issue occurs. If there is no issue, the problem may be with the HDMI switch or its settings.

2.Replace the HDMI Cable

• Try replacing the HDMI cable with a new one and check if there is any improvement. Using cables that meet HDMI 2.0 or HDMI 2.1 standards can help improve signal stability and reduce no picture issues.

3.Replace the Signal Source Device

• Replace the signal source device (such as a gaming console, set-top box, etc.) by plugging it into a different HDMI input port. Check if the no picture issue still occurs. If only a specific device causes the no picture problem, the issue may be with the device itself.

4.Check Power Supply

• If the HDMI device requires external power (such as some gaming consoles or set-top boxes), ensure that the power supply is stable. Unstable voltage could cause the device to malfunction, leading to no picture.

5.Check for Electrical Interference

• Verify if there are any nearby electronic devices (such as wireless routers, Bluetooth devices, etc.) that might be causing interference with the HDMI signal. Signals from these devices could disrupt HDMI stability, resulting in no picture.
  

6.Test Different HDMI Input Ports

• Try plugging the HDMI device into other HDMI input ports on the TV to see if the no picture issue still occurs. Some HDMI ports may have poor contact or hardware malfunctions.

7.Check If the Device Has Been Continuously Powered On for Extended Periods

• Determine whether the device has been continuously powered on for an extended period. If restarting the device resolves the issue, try turning off and unplugging the device for a reboot to see if the problem persists.

When there is no picture presented

1. Make sure the direct connection from the source to the display without this unit is working.

2. Check if all connectors are connected well; and check if all HDMI cables can support the transmission speed. UHD Certification cables are recommended.

3. Check the main unit is powered on (the light display position on the front is solid)

When resolution could not show in 8K

1. Make sure your sources and displays are fully supporting 8K.

2. Make sure your HDMI cables are capable of transmit 8K video signal.

3. Make sure used HDMI 2.1 certification HDMI cable.

4. If the main unit is not powered on or there is no signal, please connect devices that support USB standard power delivery formats (e.g. TV's USB port / power adaptor)

5. The power adaptor to the Micro USB [DC 5V] of the Bi-directional switch.

No Picture When Switching (1-2 seconds of no picture when switching signal sources)

1. Directly Connect the Device to the TV

• Connect the HDMI device directly to the TV’s HDMI input port, bypassing any intermediary devices (such as an HDMI switch). Check if the no picture issue still occurs. If there is no issue with a direct connection, the problem may be with the switch or other devices.

2. Replace the HDMI Cable

• Replace the HDMI cable and see if this resolves the issue. Choose a high-quality cable that meets the HDMI 2.0 or HDMI 2.1 standards, as this helps ensure stable signal transmission and reduces latency.

3. Replace the Signal Source Device

• Try switching to a different HDMI signal source (e.g., a different device or a different HDMI port) and check if the no picture issue still appears. If only one specific signal source device causes the no picture issue, the problem may be with the device's output.

4. Adjust the HDMI Signal Source Output Settings

• Ensure that the signal source device (such as a gaming console, set-top box, etc.) is set to a resolution compatible with the TV. A resolution that is too high or an unsupported refresh rate can cause no picture. Adjust the device's resolution to match the TV's display capabilities.

No Picture During Normal Use (Occasional no picture during regular viewing)

1. Directly Connect the Device to the TV

• Connect the HDMI device directly to the TV, bypassing the HDMI switch, and check if the no picture issue occurs. If there is no issue, the problem may be with the HDMI switch or its settings.

2. Replace the HDMI Cable

• Try replacing the HDMI cable with a new one and check if there is any improvement. Using cables that meet HDMI 2.0 or HDMI 2.1 standards can help improve signal stability and reduce no picture issues.

3. Replace the Signal Source Device

• Replace the signal source device (such as a gaming console, set-top box, etc.) by plugging it into a different HDMI input port. Check if the no picture issue still occurs. If only a specific device causes the no picture problem, the issue may be with the device itself.

4. Check Power Supply

• If the HDMI device requires external power (such as some gaming consoles or set-top boxes), ensure that the power supply is stable. Unstable voltage could cause the device to malfunction, leading to no picture.
  

5. Check for Electrical Interference

• Verify if there are any nearby electronic devices (such as wireless routers, Bluetooth devices, etc.) that might be causing interference with the HDMI signal. Signals from these devices could disrupt HDMI stability, resulting in no picture.
  

6. Test Different HDMI Input Ports

• Try plugging the HDMI device into other HDMI input ports on the TV to see if the no picture issue still occurs. Some HDMI ports may have poor contact or hardware malfunctions.
  

 7. Check If the Device Has Been Continuously Powered On for Extended Periods 

•  Determine whether the device has been continuously powered on for an extended period. If restarting the device resolves the issue, try turning off and unplugging the device for a reboot to see if the problem persists.