She soldered four wires, connected her USB-to-TTL adapter, and fired up PuTTY at 115200 baud.
button and select the .web or .bin file you unzipped earlier. Apply Upgrade: Update Software in TOTOLINK ND300V2
Sometimes old cache causes issues. Perform a factory reset and re-upload your backup settings from Step 3. She soldered four wires, connected her USB-to-TTL adapter,