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The issue may be caused by the incorrect setup process. Please follow the steps below to resolve it.
1. Select 1080p resolution for the projector via PC or laptop.
2. Go to OSD Menu and select “Reset System” to return all the settings to the factory default.
3. Change the resolution back to 4K for the projector via PC or laptop.
4. Follow the video below to do the “Auto Screen Fit” again but make sure to follow the key points below, you may need to move the projector if needed.
a. 16:9 / 16:10 screens: it is recommended to keep the projection angle within 10° and the projector within 2.2 m from the screen.
b. 4:3 / 1:1 screens: it is recommended to keep the projection angle within 20° and the projector within 2.2 m from the screen.
5. After finishing the “Auto Screen Fit”, do not make any adjustments in the
pop-up Corner Fit menu. Exit the menu first & connect a 4K source, then
readjust the Corner Fit using the remote control's Corner Fit hotkey or the
Corner Fit option in the OSD menu.
