Setup Xiaomi smart scales: from connectivity to accurate measurements

Xiaomi’s smart scales are not just a weight measurement device, but a full-fledged body composition analyzer that syncs with a smartphone and tracks the dynamics of changes. However, many users face problems when they first connect: scales are not detected in the application, show incorrect data or constantly reset the connection, and 90% of these errors are due to incorrect initial setting or ignoring calibration.

In this article, you will find detailed instructions for setting up all popular Xiaomi scale models (Mi Body Composition Scale 2, Smart Scale 2, Mi Scale 3), including hidden features that the manufacturer does not advertise. We will analyze not only the basic connection, but also the solution of typical errors (code E1, E2, Lo), as well as recommendations for improving the accuracy of measurements – for example, why morning weighings are 2-3% more accurate than evening ones.

If you've just unpacked the scales or they suddenly stopped working after updating the application, don't rush to bring them to the service. 80 percent of the time, the problem is solved by resetting the settings or reinstalling Mi Fit. Let's start with the most important thing: the right first start.

Preparation of scales for first inclusion

Before you turn on the scales, make sure you meet three key conditions:

1. Set the batteries correctly polarized. Xiaomi scales use 4 AAA batteries (usually Duracell or similar) If the indicator does not light up, check the contacts.

After the batteries are installed, the scales must automatically turn on (the display with the Mi logo will light up).

• 🔋 Check the battery charge with a tester - the voltage should be at least 1.35 V on each.
• 🔄 Press the reset button (hole on the back) with a thin object (clip) and hold for 5 seconds.
• 📱 Make sure there are no other 2.4GHz devices (old Wi-Fi routers, microwaves) around that can interfere with your device.

Important: If the scales are sounding, but the display is not turning on, this is a sign of malfunctioning contacts in the battery compartment. Try to bend the metal plates slightly inside the compartment with a flat screwdriver.

2. Installation and configuration of the Mi Fit application

Xiaomi scales only work through the official Mi Fit app (or its Zepp Life counterpart for new models). Download it from Google Play or the App Store. Don't use clones or modified versions - they may not support the latest sync protocols.

After installation:

1. Sign up or sign in through your Xiaomi account (if not, create one).
2. Enable all permissions for the application: geolocation, file access, notifications.
3. In your smartphone settings, activate Bluetooth and Wi-Fi (even if the scales are connected via BLE, some models require Wi-Fi to update the firmware).

For stable operation:

• 📵 Turn off the power saving mode for Mi Fit in the smartphone battery settings.
• 🔄 Update the app to the latest version (older versions have Mi Scale 3 weight synchronization bugs).
• 🌐 If you use VPN Or proxy - disable them. Xiaomi servers can block suspicious IP.

3. Synchronization of the scales with the smartphone

Now we'll connect the scales to the phone:

1. Open Mi Fit and go to Profile → Add device → Libra.
2. Choose your model from the list. If you don't have one, choose Mi Body Composition Scale 2 (most Xiaomi scales are compatible with this firmware).
3. Press the scales with your foot to turn them on. The display should show a Bluetooth symbol.
4. Wait for the app to find the device and confirm the connection.

Common synchronization errors:

• 🚫 Libras are not found: check that they are on (click on them) and restart Bluetooth on your phone.
• 🔄 Connection indicator is constantly spinning: remove the scales from the list of devices in Mi Fit and add again.
• ❌ Mistake. E2: Exceeding the weight limit (usually) >150 kg) or incorrect calibration. Reset the balance settings with a button on the back.

If the scales are connected but do not transmit data to the application, check the regional settings in Mi Fit. For Russia, choose the "Europe" region (not "Russia"), otherwise there may be problems with units of measurement (pounds instead of kilograms).

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After the first connection, make a test weighing without shoes and socks - this will help the application to more accurately calculate the basic indicators (muscle mass, water in the body).

Calibration and accuracy adjustment

Even after a successful connection, scales can show incorrect data. The main reason is the lack of calibration. Unlike mechanical scales, Xiaomi smart models require an initial adjustment to your weight and floor covering type.

How to calibrate the scales:

1. Stand on the scales with bare feet and wait for a stable reading of weight (the numbers will stop flashing).
2. Get off the scale and wait 10 seconds - they should reset.
3. Repeat the weighting 3 times in a row. the Mi Fit application will automatically average the data and correct the error.

To improve accuracy:

• ⏱️ Weigh yourself at the same time (optimally, in the morning after the toilet).
• 🚿 Do not weigh yourself immediately after showering - wet feet distort impedance readings (body resistance).
• 📏 Place the scales in one place and don't move them. Re-surface change requires recalibration.

⚠️ Note: if the difference between weighings exceeds 3% under the same conditions, check the scales on a flat surface with a control weight (for example, weights 10 kg.

5. Setting up a user profile in Mi Fit

The accuracy of the body composition analysis depends on the correctness of the data in your profile. Go to Profile → Edit and check:

• 📏 Growth (indicate to 1 cm accuracy).
• 👶 Age (important for calculating metabolic age).
• ♂/♀ Sex (affects fat mass norms).
• 🏃 Activity level (from sedentary to intense").

If there are several people in the family, add their profiles to Mi Fit:

1. Go to Devices → Your Libra → User Management.
2. Click Add User and enter the data.
3. When weighing, the scales automatically recognize the user by weight (with an error of ± 2 kg).

⚠️ Note: if the profile indicates an incorrect height, your BMI will be calculated incorrectly, for example, if you are 170 cm tall instead of 180 cm tall, your BMI will be underestimated by 1.5 points.

6. Solving common errors

If the scales are not working properly, use this table:

For resetting the scales to the factory settings:

1. Turn the scales and find the reset button (marked as RESET).
2. Press it with a paper clip and hold it for 10 seconds until the display goes out.
3. Reset the batteries and reset the settings.

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If the scales are not turned on after reset, check the polarity of the batteries. Incorrect installation can cause a short circuit and disable the power board.

7.Shidden functions of Xiaomi scales

Few people know, but Xiaomi scales can do more than just show weight:

• 📊 Data export: Mi Fit can unload the measurement history in CSV or sync with Google Fit/Apple Health.
• 🔋 Battery savings: If you don't use the scales for 5 minutes, they automatically turn off.
• 👶 Pregnancy mode: you can activate a special weight calculation algorithm for pregnant women in the profile settings (available in Mi Fit version 4.6).+).
• 🌡️ Temperature measurement: Mi Scale 3 has a room temperature sensor (indications are displayed in the app).

To activate the developer mode (for experienced users):

1. In Mi Fit, go to Profile → Settings → About the program.
2. Click 5 times on the version of the application.
3. Return to the main menu - the developer mode will appear, where you can turn on debugging over Bluetooth.

8. Care and extension tips

To ensure that the scales last longer than 5 years (the warranty period of Xiaomi is 12 months), follow these recommendations:

• 🧹 Clean the contact areas with an alcohol napkin 1 time per month (do not use abrasives!).
• 💧 Avoid water entering the enclosure. If the scales are wet, dry them for 24 hours in an upright position.
• 🔋 Use only alkaline batteries (Duracell, Energizer) cheap salt batteries can leak and damage the board.
• ☀️ Do not leave the scales under direct sunlight - this distorts the readings of temperature and humidity sensors.

If the scales are stored without use for more than 3 months:

1. Remove the batteries.
2. Store in a dry place at a temperature of 10–30 ° C.
3. Calibrate before re-use.

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The average battery life in Xiaomi scales is 6-8 months for daily use. If the batteries are going to go down faster, check the contacts for oxidation.

FAQ: Frequent questions about Xiaomi weights