BenQ Portable Series User Manual page 63

Problem
The projector cannot play files in storage
devices via the USB-C port.
Screen brightness is changed.
No input source.
Image or audio is unstable.
Cause
The storage device is not connected to the
projector properly.
The projector does not support the file
formats.
The adapter is removed.
The adapter is not removed but the Power
Mode is switched to Eco Mode or Low
Power.
The video source is not turned on or
connected correctly.
The projector is not correctly connected to
the input source device.
The video or audio file format is not
supported by the projector.
The connection cables are not securely
connected to the projector or the signal
source.
The Internet bandwidth is limited or
over-occupied.
The projector is out of effective range of
Bluetooth connection.
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Remedy
Make sure your storage device is fully inserted into the
USB-C port on the projector.
See Supported file formats on page 71
information about file formats supported by the
projector.
The light brightness is decreased in Eco Mode and
Low Power to support longer projection. If a brighter
screen is preferred, connect the power adapter to the
projector or change the Power Mode to Normal.
Turn the video source on and check that the signal
cable is connected correctly.
Check the connection.
If input source is the USB-C port, make sure the
source device supports DisplayPort and is connected
to the projector with a USB-C cable.
Make sure the supported file format as described in
Supported file formats on page 71
contact the customer service for assistance.
Correctly connect the cables to the appropriate
terminals.
Connect to another wireless AP or to an Internet
channel of better speed.
Make sure the projector is within the effective range of
Bluetooth connection.
Make sure there is as less radio frequency interference
as possible when using a 2.4G network.
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is being played, or