This guide will cover how to access the LG diagnostics and information menu. This requires entering a secret key combination on the TV remote.
This has been confirmed working on:
- LG 2017 OLED
- LG 2018 OLED
- LG 2019 OLED
- LG 2020 OLED
How to access the HDMI diagnostics menu
- Open the settings of the TV by pressing on the gear icon on the remote
- Highlight or move the pointer over the All Settings option and open all settings
- Select the Channels option
- Move the pointer or highlight Channel Tunning
- Press the 1 key on the remote five times quickly
After a moment, the HDMI diagnostics menu will open.