Five screens of the Monav Display: speed with a traffic-light card, a turn, the map, a speed camera warning, charging stations on the map

Monav Display Installer

Puts the firmware on a Waveshare ESP32-S3-Touch-AMOLED-1.75 over USB, straight from this page. After that, updates come over Bluetooth from the Monav app.

Install

This browser can't talk to USB devices. Use Chrome or Edge on a computer. The page has to be opened over https.

How it goes

Plug the display into the computer with a USB-C cable that carries data.
Click Connect and install and pick the board in the browser's list (it shows up as USB JTAG/serial debug unit or similar).
For a first install, let it erase the device. Erasing also forgets a paired iPhone.
When it's done, the display restarts and shows Bereit zum Koppeln with a four-digit code. Pair it in Monav under Settings › Display in the car.

If the board doesn't show up

Hold BOOT while plugging the cable in (download mode), then try again. Press RST or replug afterwards.
Charge-only cables don't work. Try another one, or another port.
On Linux, your user needs access to serial ports (the dialout group).