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ESP8266 firmware

Install CADIO Firmware on ESP8266​

Using an Android phone via OTG​


CADIO Flasher app

CADIO Flasher is the easiest tool to install CADIO Firmware on an ESP8266.

Simply, It’s a fully automated tool detects the ESP module, downloads the latest compatible firmware, and installs the CADIO firmware with the correct settings — all with a single click!

  • Download CADIO Flasher app from Google play store, Or from Downloads center.

  • Connect the ESP8266 to your Android phone via OTG, then click START FLASHING.

  • Just wait for the flashing process to complete.

CADIO App

OTG support

Make sure that your Android phone supports OTG and that it is enabled in the settings.

ESP Flashing Mode

Some ESP modules require the GPIO0 "BOOT button" to be pulled down to accept flashing.

Using a Windows PC​

  • CADIO dynamic firmware for ESP8266 is available to download from Downloads center.

  • ESP8266 CADIO firmware consists of single binary file located at the address 0x0.

  • SPI flash mode is DIO.

  • SPI flash speed is 40MHz.

  • Make sure that DoNotChgBin checkbox is activated.

  • Make sure ESP8266 in the download mode by connecting GPIO 0 with GND before connecting the ESP.

  • You should erase the current flash before start flashing the firmware to avoid any issues.

ESP Flash Download Tools