Follow the instructions below to use the audible diagnosis method.
Launch the LG ThinQ application and select the Smart Diagnosis feature in the menu. Follow the instructions for audible diagnosis provided in the LG ThinQ application.
Open the Door in Door and press the Lock button for 3 seconds to activate the lock function.
If the display has been locked for over five minutes, you must deactivate the lock and then reactivate it.
Press and hold the Freezer Drawer button for three seconds. When the display indicates Smart Diagnosis and number 3, release the Freezer Drawer button and close the Door in Door.
Open the fridge door and then hold the phone on the upper right speaker hole.

After the data transfer is complete, the diagnosis will be displayed in the application.
For best results, do not move the phone while the tones are being transmitted.