Never update firmware over Wi-Fi. A signal drop during the flash will ruin the router.
You will need to set up your Wi-Fi name (SSID) and password again after a reset. dir853 et a3 firmware update link
Better handshaking with modern fiber modems. Never update firmware over Wi-Fi
Ensure your power cable is secure. Do not turn off the device during the progress bar. 🚀 How to Install the Update 1. Access the Interface dir853 et a3 firmware update link
Firmware usually downloads as a .zip . Extract it to find the .bin file before uploading.