To ensure you have the correct and safe software for your specific model, follow these steps from the LG Support Home :

" into the model number search bar. Because this model has regional variations (e.g., 32LN542B-TC for UAE or 32LN542B.AFF for Africa), ensure you select the one that matches the suffix on your TV's rear label.

: If an update is available, download the ZIP file provided. Prepare a USB Drive : Format a USB drive (at least 1GB) to FAT32 . Create a new folder on the drive named exactly LG_DTV .

Unzip the downloaded file and place the file inside the LG_DTV folder.

: Plug the USB drive into the TV. Navigate to Settings > Support > Software Update and follow the prompts to install. Warning Regarding ".rar" Downloads