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meshtastic/website/docs/getting-started/flashing-firmware/linux.md
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linux Flashing Firmware – Linux Linux

:::note To check if you have a data cable that will work, plug in your device and then navigate to Terminal and enter the following command:

lsusb

you should see something like CP210X USB to UART Bridge Controller. :::

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

:::note Check if you have python3 and pip installed with the following command

python3 --version
pip3 --version

If python3 is not installed, install with

sudo apt-get update
sudo apt-get install python3.6

If pip is not installed, install with

sudo apt-get install python3-pip

:::

  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 for linux is a prebuilt binary for Ubuntu. These instructions were only testing on Ubuntu. Mileage may very on other distros. 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.