Xiaomi's Calibration Scales: A Complete Guide to Accurate Measurements

Xiaomi scales are some of the most popular smart gadgets for weight and body composition. But even high-precision equipment requires periodic adjustment. Incorrect readings are a common problem faced by users of Mi Smart Scale 2, Mi Body Composition Scale or Xiaomi Smart Scale Lite. The reasons can be different from factory failure to improper operation. This article will help you figure out how to calibrate Xiaomi scales yourself, without going to the service center.

Many people mistakenly think that calibration is only necessary when there is a problem. 3-6 This extends the life of the device for months and guarantees the accuracy of measurements, especially for models with body fat, muscle mass, where the error in the measurement is very high. 100-200 The gram can distort all the metrics, and then you have detailed instructions for all kinds of situations, from simple reboots to deep calibrations using weights.

If your Xiaomi scales are obviously incorrect (e.g., 0 kg at your real weight of 70 kg) or you have an Err error, don't rush to throw them away. 90% of the time, the problem is solved by software calibration through the Mi Fit or Zepp Life app. The main thing is to follow the algorithm and not miss the steps. Let's start with the device preparation.

Preparation of scales for calibration: what to do before the start

Before you start setting up, make sure that the scales and smartphone are ready for the procedure. Failure to comply with these conditions can lead to calibration failure or inaccurate results.

First, check the surface on which the scales are standing.

• 🏠 Smooth and hard (tile, laminate, wood will do; exclude carpet or soft linoleum).
• 🧲 No metal objects nearby (they can affect sensors).
• ☀️ Protected from direct sunlight and heat sources (battery, heater).

Second, prepare your smartphone:

• 📱 Update the Mi Fit or Zepp Life app to the latest version (older versions may not support calibration).
• 🔋 Make sure your phone is Bluetooth enabled and geolocated (needed for synchronization).
• 📶 Connect to a stable Wi-Fi network (to download firmware updates for weights if required).

And finally, check the scales themselves:

• 🔋 Replace the batteries (if Xiaomi scales are not turned on or show Lo on display).
• 🧹 Clean the contacts on the back (dust or oxidation may disrupt sensors).
• 🔄 Reboot the device: Remove the batteries for 30 seconds, then insert back.

⚠️ Note: If Xiaomi scales have been hit or dropped, calibration may not help.In this case, diagnostics of sensors at the service center are required.

Methods of calibration: from simple to complex

There are three main methods of calibrating Xiaomi's weights, depending on the model and the cause of the crash: Start with the simplest and proceed to the next one if the problem is not solved.

Method 1: Automatic calibration via application (suitable for most models)

1. Open the Mi Fit or Zepp Life app.
2. Go to profile. → pick your scales.
3. Press three points (⋮) top-right → Settings of the device.
4. Select Calibration of the scales (or Data Reset if there is no calibration option).
5. Follow the instructions on the screen (usually you need to stand on the scale without shoes).

Method 2: Manual calibration using weights (for fine tuning)

1. Take a weight of a known weight (for example, 10 kg or 20 kg), a sports bar, dumbbell or special calibration weight will do.
2. Turn on the scales, wait for zeros (0.0).
3. Place the weight on the center of the platform.
4. If the difference in weight is greater than ±100g, move to method 3.

Method 3: Reset to factory settings (last resort)

1. Hold the on button (if any) or press and hold the touch-sensitive area of the scales for 10 seconds.
2. Wait for the display or sound signal to flash (a sign of reset).
3. After rebooting, re-bind the scales to the application.

⚠️ Note: After resetting, all stored data in the application (measurement history, user profiles) will be deleted.

The surface levelness is checked|Updated app Mi Fit/Zepp Life|Replaced batteries (if necessary)|Prepared weight for the test (if manual calibration is required)|Data backup made (when resetting)-->

3. Xiaomi weight calibration with body composition analysis

The Mi Body Composition Scale and Xiaomi Smart Scale 2 not only measure weight, but also analyze fat percentage, muscle mass, water level and other parameters.

How it works:

• 📊 Libra sends a weak electrical impulse through the body (bioimpedance analysis method).
• 🧬 Algorithm compares tissue resistance to reference values.
• 📱 The app adjusts the metrics based on your age, height and gender.

Calibration instructions:

1. Open Mi Fit. → profile → scale → Settings for body composition analysis.
2. Make sure your profile is filled in correctly (height, weight, age, gender).
3. Do the measurement with bare feet on a dry surface (skin moisture distorts the results).
4. Repeat the measurement 2-3 intervally 1 The average will be more accurate.

Critical error: if the scales show --- When you look at body composition, it means that the bioimpedance circuit is broken, whether it's dirty or wet electrodes, socks/shoes, or sensor damage.

4. Frequent mistakes and how to avoid them

Even after calibration, Xiaomi scales may not work properly, and users' errors and ways to fix them are as follows:

Mistake 1: Libra shows an Err or ---

• 🔋 Check the batteries (even if the indicator doesn’t flash, they may be discharged).
• 📵 Reconnect the scales to the app (remove the device and add again).
• 🔄 Update the firmware of the scales through Mi Fit (in the device settings).

Error 2: A margin of error greater than 500g

• 🏋️ Conduct manual calibration with weights (see Method 2 above).
• 📍 Move the scales to another surface (possibly the floor is uneven).
• 🧲 Remove metal objects nearby (they affect sensors).

Mistake 3: Libras are not included

• 🔋 Replace your batteries with new ones (even if they seem to work).
• 🔌 Check the contacts of the batteries for oxidation (clean with alcohol).
• 🔄 Reset the settings (hold the button for 15 seconds).

Mistake 4: The app doesn't see the scales

• 📱 Reboot your smartphone and scales.
• 🔄 Turn Bluetooth on/off on your phone.
• 📋 Remove the scales from the Bluetooth device list in your phone settings and connect again.

💡

If Xiaomi scales are still the enemy after calibration, try to "reset" their history in the application. Sometimes the accumulated data interferes with the correct operation of the algorithms.

5. How to check the accuracy of the scales after calibration

To make sure that the calibration is successful, perform test measurements with the control weights.

Step 1: Test with known weight

• Take an item with an exact weight (for example, a pack of sugar - 1 kg, a bottle of water - 1.5 l) ≈ 1.5 kg).
• Put him in the center of the scales.
• Repeat 3 times. Permissible deviation: ±50g.

Step 2: Distributed load test

• Place the loads (e.g. books) at the corners of the platform.
• Compare the total weight with the readings of the weights.
• If the difference is more than 100 g, repeat the calibration.

Step 3: Testing for repeatability

• Weigh yourself 5 times in a row without changing the position.
• The maximum difference between measurements shall not exceed 200 g.

⚠️ Note: If Xiaomi scales pass load tests but the enemy is measuring your weight, the problem may be incorrectly specified height in profile!

💡

Calibration is not a one-time procedure. Repeat it every time you want to be accurate. 3-6 months, and after moving or replacing batteries.

6. Alternative methods if calibration does not help

If all the ways have been tried and Xiaomi’s scales are still the enemy, try these solutions:

Firmware update

• Open Mi Fit. → profile → scale → Firmware update.
• If the upgrade is available, plug the scales into charging (if the model supports) and wait for completion.

Relocation of region in the annex

• Sometimes the calibration algorithms are different for different countries. Try changing the region in Mi Fit to China or Europe.

Use of third-party applications

• Apps like SyncSolver or Notify & Fitness can offer advanced settings for Xiaomi scales.

Contacting the service center

• If the scales fall, are hit, or come into contact with water, the sensors may be damaged, and this requires professional diagnosis.

For Xiaomi Mi Smart Scale 2 and later, there is a hidden engineering menu that allows you to fine-tune the sensors.

1. Turn the scales on.
2. Press and hold the touch area for 10 seconds until it appears. CAL.
3. Follow the instructions on the screen (a weight will be required for the test).

7. Xiaomi weight care tips for durability

To ensure that the scales last a long time and do not require frequent calibration, follow these recommendations:

Cleaning and storage

• 🧼 Rub the platform with a wet wipe without alcohol (it can damage the coating).
• 🚫 Do not use abrasive detergents.
• 📦 Keep the scales in a dry place, away from direct sunlight.

Exploitation

• 👣 Weigh yourself without shoes (even thin socks can distort readings).
• 🕒 Measure your weight at the same time (better in the morning after the toilet).
• 🔋 Change the batteries once in a while. 6-12 months, even if the scales work.

Programmatic settings

• 📱 Update Mi Fit or Zepp Life app regularly.
• 🔄 Reload the scales once a month (remove the batteries for 30 seconds).
• 📊 Reset your measurement history once a year (accumulating data can slow down your work).

If you use Xiaomi scales to control body composition, remember:

• 💧 Drink the same amount of water before measuring (dehydration distorts fat percentage).
• 🏋️ Do not measure body composition after intense exercise (muscles retain water).
• 🍽️ Avoid measurements immediately after eating (food affects weight and fluid distribution).

FAQ: Frequent questions about Xiaomi's weight calibration