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meshtastic/website/docs/getting-started/flashing-firmware/windows.md
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windows Flashing Firmware – Windows Windows

:::note To check if you have a data cable that will work, plug in your device and navigate to Device Manager > Ports and ensure the device is shown. You should see something like CP210X USB to UART Bridge Controller.

If your device is showing up under Device Manager > Ports > Other Devices you need to install the driver from Silicon Labs for the CP210X USB to UART bridge :::

Download Firmware

Download the latest firmware release. Unzip the file and locate the correct device and region within the list of prebuilt binaries.

Command Line Instructions

  1. Download and install Python. Make sure to click Add Python X.Y to PATH.
  2. Download and install Gitbash (or other appropriate shell) and run all subsequent commands from that shell.
  3. Confirm installation of python & pip with the following commands.
py --version

pip --version
  1. Install esptool
pip install --upgrade esptool
  1. Connect your radio to your USB port.
  2. Confirm that your device is talking to your Mac by running the following command in Terminal.
esptool.py chip_id

# You should see a result similar to this:
mydir$ esptool.py chip_id
esptool.py v2.6
Found 2 serial ports
Serial port /dev/ttyUSB0
Connecting....
Detecting chip type... ESP32
Chip is ESP32D0WDQ6 (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
MAC: 24:6f:28:b5:36:71
Uploading stub...
Running stub...
Stub running...
Warning: ESP32 has no Chip ID. Reading MAC instead.
MAC: 24:6f:28:b5:36:71
Hard resetting via RTS pin...
  1. cd into the directory where you unzipped the latest release. For example:
cd /Downloads/firmware/
  1. Install the correct firmware for your board with :::caution Be very careful to install the correct load for your board. In particular the popular 'T-BEAM' radio from TTGO is not called 'TTGO-Lora' (that is a different board). So don't install the 'TTGO-Lora' build on a TBEAM, it won't work correctly. :::
./device-install.sh -f firmware-BOARD-VERSION.bin

./device-install.sh -f firmware-heltec-EU865-1.2.0.bin
  1. To update a the firmware on an existing Meshtastic device, run
./device-update.sh -f firmware-BOARD-VERSION.bin

./device-update.sh -f firmware-heltec-EU865-1.2.0.bin

Graphical User Interface Instructions

:::note ESPHome Flasher also provides instructions to build from source or install via pip on their README. :::

  1. Download ESPHome Flasher
  2. Connect your radio to your USB port.
  3. Open ESPHome Flasher. There should be no installation required.
  4. If your board is not showing under Serial Port then you may need to install the drivers for the CP210X USB to UART bridge.
  5. In ESPHome Flasher, refresh the serial ports and select the port to which your board is connected.
  6. Browse to the previously downloaded firmware and select the correct firmware based on the board type.
  7. Select Flash ESP.
  8. Once complete, “Done! Flashing is complete!” will be shown.