LILYGO T-Watch S3 : Firmware Flashing Guide (Meshtastic)

 Compared to most other Meshtastic devices, the T-Watch S3 is probably the most technical when it comes to flashing or updating the firmware. If you plan on using this device with Meshtastic and don't want to deal with flashing the firmware yourself, please reach out and we can pre-flash the device with latest version of Meshtastic.

Step 1:

Gently remove the back cover from your T-Watch S3.

 

Step 2:

Remove the 4 screws holding in the battery and vibration module.

Step 3:

Gently fold the battery cover/vibration module to the left and the battery to the right.

Step 4:

Gently open the Micro USB port cover on the side of the T-Watch S3.

Step 5:

On your computer visit flasher.meshtastic.org :

Step 6: 

In the device section, click the drop down on "Select Target Device" and select the LILYGO T-Watch S3.

 

Step 7:

In the firmware section, click the dropdown on "Select Firmware Version" and then select your preferred version. We suggest using the latest Stable Beta.

Step 8:

Next in the flash section, click the "Flash" button. It is OK that we don't yet have our T-Watch plugged into the PC, Do NOT plug it in yet.

Step 9:

An Updates log pop up will appear, scroll down to the bottom and select "Continue".

Step 10:

Next we suggest making sure the "Full Erase and Install" toggle switch is turned ON, then click the "Erase Flash and Install" Button.

Step 11:

A pop up of available COM port devices will appear. Leave this window up and we will move back over to the T-Watch side of things.

Step 12:

Next continuously hold down the bootloader button on the T-Watch S3 until the instructions tell you to release it and plug the T-Watch into the computer.

Step 13:

Keep holding that bootloader button... On the computer a new device should appear in the available COM devices window. Select that device and click continue. ***If no device appeared you may need to install the serial driver on your computer found HERE.***  

Step 14:

The T-Watch S3 should start flashing at this point. Once you see "Erasing Flash" it is ok to release(stop holding down) the bootloader button on the T-Watch S3.

Step 15:

It may take a little while to flash the device, but once the console is displaying "waiting for download" your device is fully flashed.

Step 16:

Disconnect your T-Watch S3 from the computer.

Step 17:

On the T-watch S3 board, slide the power switch to the ON position.

Step 18:

Gently fold the battery then battery cover/vibration module back into position.

Step 19:

Screw all 4 screws back into their appropriate slots.

Step 20:

Close the Micro USB port cover.

Step 21:

Place the back cover back onto the T-Watch S3.

Step 22:

Enjoy.