In [Lilygo-S3-Display](https://github.com/tasmota/autoconf/tree/main/raw/esp32s3/Lilygo-S3-Display) must be GPIO pin **15** HIGH if you use external power supply +5V (not USB-C). If GPIO 15 is down display is disconnected. Sources: [T_Display_S3.pdf](https://github.com/tasmota/autoconf/files/11224640/T_Display_S3.pdf) 