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Universal Serial Bus (USB) Specific Problems
Common Symptoms What You
USB interface is not
working.
Super Speed USB 3.0
interface is slow.
Mobile High-Definition Link (MHL) Specific Problems
Common Symptoms What You
MHL interface is not
working.
62
Troubleshooting
Experience
USB peripherals are
not working.
Super Speed USB 3.0
peripherals working
slowly or not working
at all.
Experience
Cannot see MHL
device image shown
on monitor.
Possible Solutions
• Check that your monitor is
turned ON.
• Re-connect the upstream cable
to your computer.
• Re-connect the USB
peripherals (downstream
connector)
• Switch off and then turn on the
monitor again.
• Re-boot the computer.
• Some USB devices like external
portable HDD require higher
electric current; connect the
device directly to the computer
system.
• Check that your computer is
USB 3.0-capable.
• Some computers have both
USB 3.0 and USB 2.0 ports.
Ensure that the correct USB
port is used.
• Re-connect the upstream cable
to your computer.
• Re-connect the USB
peripherals (downstream
connector).
• Re-boot the computer
Possible Solutions
• Re-connect the upstream cable
Ensure your MHL cable and
MHL device are MHL certified.
• Check your MHL device is
turned On.
• Check your MHL device is not
in Standby mode.
• Check physical MHL cable
connection is corresponding to
input source selected on OSD
Menu i.e., HDMI (MHL) .
• Wait for 30 seconds after
connecting MHL cable as some
MHL devices require longer
recovery time.
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