1. Check HDMI cable connection

    

   Unplug and reconnect firmly on both sides.

    

2. Switch monitor input to correct HDMI source

    

   Make sure it’s set to HDMI 1 / HDMI 2.

    

3. Try a different HDMI cable

    

   Replace with a known working cable.

    

4. Power cycle both devices

    

   Turn off → unplug power → wait 1 minute → restart.

    

5. Test with another display (TV / monitor)

    

   Connect to a different screen via HDMI to check.

    

6. Test with VGA port (if available)

    

   If your device has a VGA output, connect with VGA to see if it works.

    

   7 Connect device to a working network & add via APP

    

   Connect the Zosi device to an internet-enabled network.

    

   Add the device to your  zosi smart APP to see if it works normally.

    

   This helps confirm if the device itself is running properly.

    

    

If still not working, please send us:

1. Your order number

2. Photo of the device label / sticker

3. Brand and model of your monitor

4. Which steps you have tested

5. Contact our service team to.