Flash Explicit Version

This page allows flashing an older version from the ChangeLog. For details instructions, please refer to Firmware.

  1. connect the adapter via USB and keep the button pressed while doing so (force bootloader mode)
  2. click this button:
    Installer powered by ESP Web Tools.
  3. pick the serial Port "USB/JTAG serial debug unit (COM...)" and click on "Connect" (e.g. on Windows)
  4. click on "INSTALL ..." and follow further instructions