Welcome to SME Dehradun, where we provide expert guidance on troubleshooting and repairing electronic devices. In this article, we will guide you through the process of factory resetting a NodeMCU ESP8266 board, erasing the EEPROM, repairing the bootloader, and upgrading the firmware. Whether you are a beginner or an experienced developer, this technique will work for every NodeMCU development board.
To begin, you will need to download the NodeMCU Flasher, which is used to flash the NodeMCU board. You can find the download link in the video description. Simply click on the provided link, and it will redirect you to the GitHub repository. From there, click on “Code” and then “Download ZIP” to download the NodeMCU Flasher.
Once the download is complete, locate and unzip the downloaded folder named “NodeMCU Flasher Master.” Inside this folder, you will find two subfolders named “Win32” and “Win64.” If you have a 32-bit Windows operating system, open the “Win32” folder and run the “ESP8266 Flasher” executable file. If you have a 64-bit Windows operating system like me, open the “Win64” folder and run the “ESP8266 Flasher” executable file.
Now, connect your NodeMCU board to your computer to enable the detection of the board’s COM port. Please ensure that no other USB devices are connected to your computer during this process, as it can cause confusion in identifying the correct COM port. The NodeMCU Flasher will automatically detect the port for you.
Next, download the binary firmware file for the NodeMCU from the link provided in the video description. After downloading, go to the “Config” tab in the NodeMCU Flasher and click on the settings icon. Navigate to the location where you downloaded the NodeMCU firmware and select the .bin file.
In the “Hex Code” field, enter “0x000” and then click on the “Operation” tab. Press the “Flash” button to start flashing the firmware onto the NodeMCU board. The flashing process may take one to two minutes to complete. Once finished, you will see a tick mark indicating that the process was successful.
Congratulations! You have successfully flashed the latest firmware onto your NodeMCU ESP8266 board, which includes factory resetting, EEPROM erasing, firmware updating, and bootloader repairing. Your NodeMCU board is now completely renewed and ready for use.
To test the program on your NodeMCU board, open the Arduino IDE and select “NodeMCU 1.0 (ESP-12E Module)” as the board. Choose the appropriate COM port and click on the “Upload” button. The program will be uploaded, and you will notice the inbuilt LED on the NodeMCU board blinking at a one-second interval. You can also check the status of the program in the serial monitor.
Thank you for watching our video and reading this article. We hope you found it helpful and informative. If you enjoyed the content, please consider subscribing to our channel for more innovative solutions and tutorials. Stay tuned for upcoming videos and happy programming with NodeMCU ESP8266!
