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How to resolve the message "Out of Range" or "No signal" displayed on a blank screen when connecting the projector to input source devices?
What is the Maximum length of HDMI cable I can use?
What is keystone correction?
Why can't the projector detect 3D signal?
How long is the suggested working time for models which light source is UHP lamp?
How do I mute the projector?
Why can’t I use a QR code to log in to the AMS system when the projector is turned on?
How do I clean my projector lens?
Which types of BenQ projectors require a power cycling process?
How to change the lamp and reset the lamp timer?
How do I use a RS232 cable to power on or power off the projector?
How do I use a RS232 cable to control the volume and sound on the projector?
Does the projector support changing slides on PowerPoint using a remote which emulates page up and page down commands for both Windows PC and MacOS?
Can I change the projector lamp myself?
Can I control the BenQ projector with a remote control designed by other manufacturers?
Which reminder messages will stop being displayed after "Reminder Message" is switched off?
Which 3D glasses are recommended for BenQ projectors with 3D features?
My remote control is not working. What can be done to fix it?
Why does the projector not respond to any command when powering on or turning off?
How to resolve the "Illegal Format" message that popped up when I was inputting RS232 commands?
Can I leave my projector turned on 24/7?
May I use QPresenter in my mobile phone?
Please don't place the projector in any of the following environments.
How to clean the lens?
The lamp is not on but the fan remains running, what is happening?
Why is there slight scent of burning or plastic smell when using projectors？
Why I cannot use PointDraw on my ChromeBook?
What is LAN Web Control?
Projection is rather blurry, what can I do?
The eco mode is much darker than SmartEco mode. Is it normal?
Why the keystone value can not be saved after turning off the projector?