If you don't, then make sure your connections are correct, and perhaps try swapping the RX and TX pins around. You should receive a notification about success before hitting 20 times. The "Try to connect times: " message should increment a few times as the utility tries to contact the module.
You should receive a notification saying "Operation Succeeded!"
#ESP8266 FIRMWARE SOURCE CODE ZIP FILE#
You can download all the required files in this ZIP file esp_flasher.zipĪbove is a pin out diagram for the ESP8266 Module.If your USBSerial device enumerates to a higher port number than that, you will have to change it via Device Manager in Windows. The firmware updating software only works on COM ports 1-6.It allows easy plugging into a breadboard, which then allows me to hookup the pins of the ESP8266 module via jumper wires to the corresponding pins on the USBSerial board. You will need some form of USB to Serial converter that allows operation at 3.3V.You will need a Windows PC for this update.
It worked for me, and may work for you, but I take no responsibility if your ESP8266 module stops working after attempting this. Note that this information has been cobbled together from multiple websites and the official Espressif AT Github Repository.
#ESP8266 FIRMWARE SOURCE CODE HOW TO#
How to update the ESP8266 Module's firmware ¶ How to update the ESP8266 Module's firmware.