New LilyGO® T-Beam Supreme product

[Linar]

Folks have succeed with LilyGO T3-S3 board which is also based on ESP32-S3 -

Lilygo T3S3 V1.1

I tried the web flasher on a new device and it just gives a blank screen. Flashing to 2.1.5 with the CLI worked. Then I used the web flasher just to upgrade to 2.1. 9 and that worked like you said. So apparently still an issue with the initial Flash. Thanks

T-Beam Supreme initial Meshtastic flashing procedure is expected to be very similar to T3-S3 one.