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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?
Which reminder messages will stop being displayed after "Reminder Message" is switched off?
Can I control the BenQ projector with a remote control designed by other manufacturers?
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?
How do I use a RS232 cable to control the volume and sound on the projector?
How do I use a RS232 cable to power on or power off the projector?
How do I clean my projector lens?
How to change the lamp and reset the lamp timer?
How do I mute the projector?
Can I leave my projector turned on 24/7?
Does GP20 USB display function support audio?
Do GP20 support MHL?
How to clean the lens?
May I use QPresenter in my mobile phone?
Please don't place the projector in any of the following environments.
The lamp is not on but the fan remains running, what is happening?
What is LAN Web Control?
What is the max capacity of an USB memory stick that GP20 can support?
What kind of file format can be supported by GP20 when using USB reader?
Why I cannot use PointDraw on my ChromeBook?
Why is there slight scent of burning or plastic smell when using projectors？
Can I change the projector lamp myself?
Why the keystone value can not be saved after turning off the projector?
Why the keys on upper case don’t work when we select MHL as GP20’s input source
When connecting an external hard drive to GP20, why the hard drive could not be driven well sometimes ?
The eco mode is much darker than SmartEco mode. Is it normal?
Projection is rather blurry, what can I do?
My remote control is not working. What can be done to fix it?
Why doesn't the projector accept content formatted in 3D?
Which 3D glasses are recommended for BenQ projectors with 3D features?
Which types of BenQ projectors require a power cycling process?