The Xiaomi Mi Smart Scale 2 is not just a weight measurement device, it's a full-fledged health tracking tool. It analyzes 13 key body measures, from mass index to water content to muscle mass. But before first use, many people are faced with the question: how to properly turn on and synchronize the device? Unlike conventional mechanical scales, it requires connecting to a smartphone and tuning through a proprietary app.
In this article, we will take a look at the entire process, from unpacking to first weighing, learn how to turn the scales on, connect them to Mi Fit or Zepp Life, fix common errors (for example, when the scales do not respond to pressing or synchronize), and learn how to update the firmware.
Preparation for the first inclusion: what to check before starting
Before you turn on the Mi Smart Scale 2, make sure all the preconditions are met, which will save you most of the problems during the setup phase.
- 📱 Smartphone with supported OS: the Mi Fit app runs on Android 5.0+ or iOS 10.0+. On older versions, synchronization may not work.
- 🔋 Charging the battery of scales: the device is equipped with 4 batteries AAA. If they are discharged (for example, after long storage), the scales will not turn on.
- 📶 Stable Bluetooth connection: Libra connects to your smartphone via Bluetooth 4.0. Disable other devices (earphones, fitness bracelets) that can interfere with your smartphone.
- 🧘 Smooth surface: Put the scales on a hard, non-slippery surface (tile, laminate flooring) and the carpet or soft floor will distort the sensor readings.
If you bought a used scale, make sure to reset to the factory settings. To do this, press and hold the switch on 10 seconds until the indicator flashes red, which will remove the binding to the previous owner.
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If the scales were stored in the cold (for example, after delivery in winter), allow them to warm up to room temperature for 1-2 hours. Condensation inside the case can cause sensors to malfunction.
How to turn on Xiaomi Mi Smart Scale 2: step-by-step instructions
The on-boarding process consists of two steps: physical start of the device and synchronization with the application.
- Place the batteries in the compartment on the bottom of the scales. Place the scales on a flat surface with the display upwards (don't flip!).
- Press the switch on (below the display) and the indicator should turn white, which means that the scale is ready to synchronize, and if the indicator is red, the batteries are discharged or installed incorrectly.
- Open the Mi Fit app (or Zepp Life for newer versions) on your smartphone. If it's not available, download it from Google Play or the App Store.
- In the app, go to Profile → Add Device → Libra. Follow the instructions on the screen. When a Bluetooth connection request appears, confirm it.
Once the scales are successfully synchronized, they will give a short beep and the display will display 0.0, so you can now stand on them for the first weigh. If an Err error appears on the screen, see the troubleshooting section below.
Check the polarity of the batteries (+/-)
Make sure the batteries are not discharged (replace them with new ones)
Press the power button sharply, but without undue effort.
Reboot your smartphone and repeat synchronization
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Synchronization with Mi Fit: how to tie the scales to the Xiaomi account
Without being tied to a Xiaomi account, scales will work like normal mechanical scales, without saving your measurement history or analyzing your metrics. To use all the features, follow the following steps:
- Open the Mi Fit app and log in (or sign up if you don't have an account) and use the same login as you would for other Xiaomi devices (like your smartphone or bracelet).
- In the main menu, click + → Libra → Mi Smart Scale 2. The app will automatically start searching for the device.
- When the scales appear on the list, click on them. Wait for the connection process to be completed (usually takes 10–30 seconds).
- Fill out the profile: specify gender, age, height and purpose (weight loss, maintenance or weight gain) and these data are needed to correctly calculate body parameters.
Once linked, all data will automatically be stored in the Xiaomi Cloud, and you can view statistics on multiple devices (e.g., your smartphone and tablet) or export them to Google Fit/Apple Health.
Mi Fit
Zepp Life
Other (specify in the comments)
I'm not synchronizing.-->
| Problem. | Possible cause | Decision |
|---|---|---|
| Libras not included | Batteries discharged or incorrect installation | Replace batteries, check for polarity |
| Not synchronized with the phone. | Bluetooth disabled or occupied by another device | Turn on Bluetooth, turn off other gadgets |
| Err error on display | Unstable surface or overload | Place the scales on a flat surface, check the maximum weight (150 kg) |
| App doesn't find scales | Device not in pairing mode | Press the button on the scales to activate the search |
Firmware Update: Why It Matters and How to Do It
The manufacturer regularly releases firmware updates for the Mi Smart Scale 2 that improve measurement accuracy, add new features or fix bugs, such as the latest version that added support for blood viscosity measurement (for models with appropriate sensors).
To update the firmware:
- Open Mi Fit and go to the section with your scales.
- Click on the three dots in the top right corner and select Device Settings → Firmware Update.
- If a new version is available, click Update. Don't interrupt! The scales will reboot automatically.
What happens if you interrupt the update?
After the update, it is recommended to perform a calibration of the scales.
- Stand on the scale and wait for a stable reading.
- Get off the scale and wait 5 seconds.
- Repeat the weighting. If the difference between the two measurements is less than 0.1 kg, the calibration was successful.
Typical errors and their elimination
Even after setting it up properly, users sometimes face problems, and here are the most common ones and ways to solve them:
- ❌ The scales show Lo, which means that the batteries are dead. Replace them with new ones, even if they look like they're working. Use alkaline batteries, which last longer.
- ❌ No measurement history: check if your Xiaomi account is tied to the app settings. Without authorization, the data is not synced to the cloud.
- ❌ The scales are weighed with a large margin of error: place them on a flat surface and calibrate (see section above). If the problem remains, check whether the maximum weight is exceeded (150 kg).
- ❌ The app does not find the scales: reboot Bluetooth on your smartphone (Settings) → Bluetooth → Turn off/on) and repeat pairing.
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If the scales stopped syncing after the smartphone update, remove them from the list of devices in Mi Fit and perform the binding again. Android/iOS.
⚠️ Attention: if the scales fall from a height or are filled with liquid, do not turn them on! This can lead to a short circuit. Leave the device for 24 hours in a dry place (for example, next to a silica gel package), then try to turn on. If the problem remains, contact the service center.
How to lose weight Xiaomi Mi Smart Scale 2 before factory settings
Reset may be necessary in several cases:
- You have purchased a used scale and want to delete the previous owner’s data.
- The device is unstable (for example, constantly emits errors).
- You plan to sell or transfer the scales to another person.
To perform the discharge:
- Turn off the scales from the Mi Fit app (go to the device settings and select Remove).
- Press and hold the switch on the scales for 10-15 seconds until the indicator flashes red.
- Release the button. The scales will reset and be ready for a new setup.
Once reset, all the data stored in the scale memory (not in the cloud!) will be deleted. The measurement history in Mi Fit will remain intact unless you removed the device from the application before the reset.
Operational tips: how to extend the life of weights
To ensure that the Mi Smart Scale 2 lasts long and accurately measures performance, follow these guidelines:
- 🔋 Batteries: Replace all 4 batteries at once, even if only one is dead. Use batteries of the same type and brand (e.g. Duracell or Energizer).
- 🧹 Cleaning: wipe the surface of the scales with a soft cloth soaked in soapy solution. Do not use abrasives or solvents - they will damage the sensory coating.
- 🌡️ Temperature: Keep the scales at a temperature of 0°C to 40°C. Avoid direct sunlight and wet spaces (such as bathrooms).
- ⚖️ Calibration: Calibrate it every 2-3 months, especially if you notice discrepancies in the readings. Use weights with known weights (for example, a bottle of water 1 liter). = 1 kg).
If you don’t plan to use the scales for a long time (for example, going on vacation), remove the batteries. this will prevent them from discharging and possible corrosion of the contacts.
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For more accurate measurements, weigh yourself at the same time of day (preferably on an empty stomach in the morning) and in the same (or without) clothes, which will help you track the dynamics without distortion.