Skip to Contents

How-to & Tips

Find help information for your LG product

Learn about product installation, maintenance, and troubleshooting using our search options.

One point Lesson –“USB external HDD is not supported”

  • Others
  • Others
  • Troubleshooting
  • TVs
  • Last Updated 09/06/2016

Subject : "USB external HDD is not supported

symptom Symptom

USB external HDD is not supported showing error USB device disconnected” automatically after HDD plug-in USB port.


cause Cause

Reason of defect was  bad sector files found in external HDD. Bad files can be created  in  hard disk over a period of usage. This need to 

   cleared  timely with the help of IT professional


how to fix How to fix

Check bad sector in HDD by run command  prompt  type “chkdsk C”:(drive letter of HDD) as shown in picture. If no bad sector in HDD then bad

     sector show 0 KB. Explain the same to customer to remove bad files with the help of IT professional


Attached files

Article Feedback

Q1. Overall, how satisfied were you with the usefulness of this information?
Q1-1. Why were you dissatisfied withthe usefulness of this information?

Characters left : 500 / 500