※ The error message may be different from the actual message you hear from the product.
If foreign objects are smudged over the viewer sensor, it will not operate normally.
Try this
Use a soft cloth to clean off the viewer sensor.
Avoid to make a scratch in the viewer sensor.
If foreign objects are smudged over the viewer sensor, it will not operate normally.
Do not use volatile or organic solvents (thinners, solvents, acetone, etc.) to clean the product.
If the sensor is damaged, have it checked by an LG service technician.
This guide was created for all models, so the images or content may be different from your product.