Put the extender near the router and turn the power on and wait for the yellow indicator light to start flashing.
Scan the QR code to install the app and follow the instructions to add the device.
When the indicator light turns blue so the pairing is complete.
Now you can simply unplug and plug the Mi Wifi in a location for the best signal quality and coverage in your house, without needing to configure the extender again.

Also, you can connect to your router wirelessly, strengthening and expanding its signal to every corner of the home – even to those, hard-to-reach spots, such as bathrooms, balconies, and bedrooms.
This ensures an increased coverage of reliable and high-speed Internet for devices such as notebooks, tablets, smartphones, game consoles, and smart TVs.

Add Wi-Fi extenders to vastly speed up your gaming and movie-watching experience.
And now comes with a 2×2 external antenna to maintain a transmission rate of 300Mbps while also increasing signal

For the best results, it needs to be placed somewhere between the router and the dead zone and with a strong and stable router signal.

Also, you can check this through the Mi Home app.