How do I adjust the brightness of the Glyph Interface? March 05, 2024 12:03 Updated Go to Settings > Glyph Interface and slide the bar to adjust brightness. Related articles How do I turn the Glyph Interface on/off? How do I set an alarm? How do I switch between 4G and 5G? How do I choose the Glyph Interface for ringtones? How can I extend my phone's battery life?