LG 84LM9600 User Manual page 107

✎ It is recommended to use USB Memory Stick with 32 GB or less and USB HDD
with 2 TB or less.
✎ For USB HDD with energy-saving features, turn off and turn on again if it
does not work properly. For more information, refer to the user manual of
USB HDD.
✎ Data in USB storage device can be damaged so be sure to back up
important files in a separate storage device. Data maintenance is the user's
responsibility and the manufacturer is not responsible for any data loss.