User's Manual

31 Troubleshooting
Troubleshooting
Category Problem Cause Solution
Yo u r s c re e n
Yo u r s c re en i s n o t
appearing on the
display when
pressing the Button.
The Button is
connecting to
another Host.
The Button should be paired
again with the Host.
Pressing time is not
enough.
Press the Present key until the
LED indicator turns from green
to blue.
The screen turns
blank or flickers
when the Host is
presenting.
Insufficient power
supply
Change power supply of the
Host to a power adapter.
The screen lags
seriously and the
audio breaks up
sometimes.
Insufficient power
supply for the Button.
An laptop with USB
2.0 port may be used
as the power supply
for the Button.
Make sure you use USB 3.0 as
the power supply for the
Button.
Wi-Fi interference or
signal attenuation
• Make sure the transmission
distance is within 15M and
with no obstacles.
• Restart the Host in order to
rescan the Wi-Fi 5G channel.
Yo u r s c re e n
The message, "No
Signal", from the
Host is shown on
the display when the
Button is
presenting, or your
screen is blank gray.
The HDMI
connection between
your laptop and the
Button is loose.
Reconnect the HDMI cable of
the Button.
Your laptop cannot
detect the second
monitor.
• Reconnect the USB cable of
the Button.
• Reboot your laptop.
Yo u r s c re en i s
shown, but your
audio is not playing
on the audio system
of the meeting
room.
The audio signal on
your laptop is muted.
Right click on the speaker icon
and switch off the mute.
The audio output of
the laptop hasn’t
been set to the
second screen (BenQ
InstaShow™ S) from
the EDID of the
Button.
Change the default audio output
to the second screen (BenQ
InstaShow™ S) on the laptop.