Xiaomi devices calibration: screen, battery, sensors and sensors

Calibration of Xiaomi devices is the process of customizing hardware components to work with the software accurately. Without proper calibration, you may encounter problems: incorrect colors on the screen, fast battery discharge, gyroscope failures in games or inaccurate sensor readings in fitness bracelets. In this article, we will discuss how to calibrate various components on Xiaomi smartphones, TVs and wearables, including hidden engineering menus and official tools.

It is important to understand that calibration is of two types: software (through system settings) and hardware (using specialized tools or service centers). Most procedures can be performed independently, but some (for example, calibrating the battery after replacement) require a professional approach.

1. Screen calibration on Xiaomi smartphones

The screen is the most visible component, and its improper calibration is immediately noticeable. On Xiaomi devices (Redmi, POCO, Mi series), there are often problems with color reproduction, automatic brightness or touch response. For basic settings, go to Settings → Display:

• 🎨 Color profile: Choose between Standard, Saturated or User (available on flagships like Xiaomi 13 Pro).
• 🔄 Automatic brightness: Turn it off if the screen is too dim or bright in different conditions.
• ✍️ Sensor Sensitivity: Configure in Settings → Additionally. → Touch screen (not available on all models).

For deep calibration, use the engineering menu. Enter the phone app code ##36446337## (CIT). So you can test every pixel for broken points, check for color gradients, and adjust the gamma curves. AMOLED-screens (e.g. Xiaomi) 12T) Calibration through an engineering menu can reset factory color settings – do this only when there are obvious problems.

⚠️ Warning: Changing the parameters in the engineering menu without understanding the consequences can lead to incorrect screen operation. If after calibration artifacts (strips, flickering), reset the display settings in the same menu.

Battery calibration: when and how to do

The myth of “battery calibration” as a panacea for quick discharge has been around for years, but in fact, the procedure is only needed in two cases:

1. After the battery is replaced (even with the original one).
2. If the device does not display the percentage of charge correctly (for example, it turns off sharply at 30%).

For calibration on Xiaomi smartphones (including Redmi Note 11, POCO X5):

1. Charge your phone with a 100% original charger.
2. Disconnect from the network and use until the automatic shutdown.
3. Do not turn on 6-8 hours (important for resetting the controller).
4. Charge again to 100% without interruption.

Xiaomi Mi TVs don’t require battery calibration — they don’t have removable batteries, but fitness bracelets (Mi Band 7, Xiaomi Smart Band Pro) have the same procedure as smartphones, but take less time due to the low battery capacity.

⚠️ Note: On devices with built-in (non-removable) batteries, forced calibration can shorten battery life.

Calibration of the gyroscope and accelerometer

The gyroscope's inaccurate performance is evident in games (like PUBG Mobile or Genshin Impact), when tilt control is delayed, or in augmented reality applications.

1. Install the Sensor Test app (available on Google Play).
2. Place the phone on a flat surface (table, floor).
3. In the app, select Gyroscope Calibration and follow the instructions.

For Xiaomi Mi TV Q2 or Mi TV A2 with gyroscope (used to control the remote with motion sensor):

• 🔄 Restart the TV.
• 🎮 In the remote menu, select Settings → Devices → DU remote → Sizing.
• 📱 Follow the instructions on the screen (usually you need to rotate the remote in different planes).

If the calibration didn't work, check the physical condition of the sensors, for example, after a smartphone falls, the gyroscope may be damaged, in which case a replacement module is required.

4. Calibration of sensors in Xiaomi fitness bracelets

Xiaomi’s smart watches and bracelets (Mi Band 8, Xiaomi Watch S3) calibrate the sensors automatically, but sometimes manual adjustment is required. For example, if the pedometer shows inaccurate data or the pulsemeter fails.

1. Open the Mi Fitness app (or Zepp Life for new models).
2. Go to the Device Profile → Sensor settings.
3. Select the pedometer calibration and walk 20-30 steps with a bracelet on your hand.
4. For the pulse meter, put on the bracelet tighter and start calibration at rest.

If the heart rate sensor shows absurd values (for example, 220 beats / min at rest), try:

• 🧼 Wipe the sensors with alcohol (fat or sweat interfere with reading).
• 🔄 Reset the bracelet (press the button for 10 seconds).
• 📱 Update the firmware through the app.

💡

If your Mi Band is running out quickly after the update, roll back the firmware via the Notify & Fitness for Mi Band app (available for Android).

5.Scaling the sound on Xiaomi TVs

Xiaomi Mi TVs (especially Dolby Audio models) sometimes require a sound profile setup, and if the bass is too loud or the voices sound muted, calibrate:

1. Go to Settings → Sound → Sound settings → Equalizer.
2. Select a preset (Film, Music, News) or customize manually.
3. For accurate calibration, use the built-in Sound Customizer (available on Mi TV Q1E and later).

If the sound is distorted at high volume, check:

• 🔊 Connect external speakers (if you use Soundbar or Home Theater).
• 📶 Signal source (when connected by HDMI ARC A separate setup may be required).
• 🔄 Update of the TV firmware (in some versions) MIUI TV were sound bugs).

💡

On Xiaomi TVs with Dolby Atmos, the audio calibration automatically adapts to the content. Turn it off in the settings if you want manual tuning.

6. Resetting calibration to factory settings

If the device becomes worse after self-calibration (for example, the screen shows unrealistic colors or the battery discharges faster), return the factory settings.

On smartphones:

1. Go to Settings → About the phone → Reset settings.
2. Select Display Settings Reset or Battery Settings Reset (if available).

On TVs:

1. Open Settings → Device → Reset and Recovery.
2. Select Reset Sound settings or Sensor Reset (for remote).

For fitness bracelets, the reset is done through the Mi Fitness app in the Device Settings → Reset section. After that, you will need to re-attach to the account.

⚠️ Warning: Full Wipe Data resets on your smartphone will delete all data, including sensor calibration files. Use this method only if other methods have not helped.

Frequent errors in calibration

Many users make the same mistakes that lead to even bigger problems.

• 🔋 Using non-original chargers when calibrating the battery – this distorts the controller data.
• 🛠️ Disassemble the device for “manual” calibration of sensors without experience (risk of damage to plumes).
• 📱 Install unofficial firmware (for example, customized ones) ROM) before calibration – this can disrupt the operation of sensor drivers.
• ⚡ Interrupt the battery calibration process (e.g., pulling the charging cable halfway through the cycle).

Another common mistake is ignoring firmware updates. Newer versions of MIUI or MIUI TV often fix sensor-related bugs. Check for updates in Settings → About Phone → System Update before calibrating.

FAQ: Answers to Frequent Questions