How to Calibrate Xiaomi Phone: Screen, Battery and Sensors

Calibration of a Xiaomi smartphone is the process of adjusting its hardware components to work precisely. Without proper calibration, you can run into problems ranging from incorrect display of colors on the screen to rapid battery discharge or gyroscope failures. In this article, we will discuss how to self-calibrate key elements of your device — screen, battery, accelerometer and compass — without going to the service center.

The calibration procedure differs depending on the Xiaomi model (e.g. Redmi Note 12 Pro+ or POCO F5), the MIUI version and component type. We will look at the universal methods that work on most devices, and also point out the nuances for specific lines. If you notice that the touch screen has become less responsive, the battery is discharged unevenly, or navigation in the cards shows the wrong direction - this instruction will help return the phone to optimal performance.

Before you start, make sure your device has the latest firmware installed. Go to Settings → About Phone → System Update. We also recommend charging the battery to at least 50% – this is important for accurate calibration.

1. Touch screen calibration on Xiaomi

If your Xiaomi has become less responsive to touch, misses taps or spontaneously opens applications, the problem may lie in unbalanced sensor performance.

On most Xiaomi models (including Redmi and POCO), the screen is calibrated via a hidden engineering menu.

1. Open the phone app and enter the combination: ##6484###
2. The sensor test menu will appear on the screen. Press Sensor Test.
3. Follow the instructions on the screen: swipe your finger at the specified points and lines.
4. After the test is completed, press Calibrate (if the option is available) or simply restart the phone.

If the code doesn’t work, try an alternative method:

• 📱 Install Touchscreen Calibration from Google Play (suitable for root-enabled devices).
• 🔧 Use it. ADB-manual calibration commands (requires a connection to a PC).
• 🛠️ Contact the service center if the screen is physically damaged (cracks, bloating).

⚠️ Note: Some Xiaomi models (e.g. Redmi) 9A or POCO M3) They don't support software screen calibration, and in this case, only resetting to factory settings or replacing the display module will help.

Charge your phone to at least 50% |

Backup of important data |

Make sure your hands are free of moisture or dirt |

Use the original cable (in the case of the ADB-calibration)

-->

Battery calibration: why the phone discharges quickly

Over time, Xiaomi's lithium-ion batteries lose their charge-level accuracy, manifested in sharp percentage jumps (e.g., from 30% to 1% per minute) or rapid discharge. The battery calibration helps reset the power controller data and return adequate readings.

There are two ways of calibration:

Method 1: Software reset (without root)

1. Discharge the phone before automatically switching off (0%).
2. Connect the original charger and charge for at least 8 hours without interruption.
3. Turn off the charging, turn on the phone and wait for the system to fully boot.
4. Repeat the discharge / charge cycle 1-2 times.

Method 2: Engineering menu (for advanced)

This method requires access to hidden settings:

1. Enter the phone code in the app: ##4636##
2. Select the Battery Information item.
3. Click Reset Battery Statistics (if option is available).
4. Perform a full discharge/charging cycle.

⚠️ Attention: If after calibration the battery continues to discharge within a few hours, the problem may be physical wear. → Battery → Battery condition: Replacement is recommended for capacity below 80% of nominal capacity.

Once in 3 months |

Only when the problems start |

Never calibrated |

I don't know what that is.

-->

Calibration of the accelerometer and gyroscope sensor

The accelerometer and the gyroscope are responsible for determining the position of the phone in space, and if they're not working properly, you'll notice:

• 🎮 Incorrect tilt in games (for example, in the PUBG Mobile or Asphalt 9).
• 📱 Automatic screen rotation is delayed or not working.
• 🧭 Inaccurate readings in annexes AR (For example, Google Measure).

For calibration of these sensors:

1. Open Settings → System applications → Sensors (on some models, the path may be different).
2. Select Sensor Calibration.
3. Place your phone on a flat horizontal surface (such as a table).
4. Click Start Calibration and wait for the process to be completed.

If the menu does not have a calibration option, use third-party apps:

• 📲 GPU Z (shows real-time sensor data).
• 🎯 Sensor Box for Android (tests all sensors).
• 🔄 Accelerometer Calibration (specialized instrument).

💡

If the gyroscope still doesn’t work properly after calibration, check if magnetic covers or metal accessories interfere with it.

Calibration of the compass (magnetic sensor)

A magnetic sensor (compass) is used in navigation applications (Google Maps, Yandex.Maps, Compass). If the compass needle is rotating randomly or showing the wrong direction, the sensor requires calibration.

Instructions for Xiaomi:

1. Open the Compass app (if not, install it from Google Play).
2. A message will appear on the screen: “Put eight for accuracy.”
3. Take the phone in your hand and slowly rotate it in the air, describing the infinity sign (∞).
4. Repeat the movement 2-3 times until the arrow stabilizes.

If the calibration does not help:

• 🧲 Check if there are any sources of magnetic interference (dynamics, microwaves, metal objects).
• 🔄 Restart your phone and repeat the procedure.
• 🛠️ Update the firmware - in new versions MIUI Frequently correct sensor errors.

5. Camera calibration: why photos are blurred

If your Xiaomi photos are not sharp, with distorted colors or the wrong white balance, the problem may be the camera’s unbalanced performance, and calibration here involves resetting to factory settings and checking autofocus.

How to reset your camera settings:

1. Open the Camera app.
2. Go to Settings → Restore the default settings.
3. Reboot the phone.

To check autofocus:

• 📸 Point the camera at a subject with clear boundaries (e.g., text on paper).
• 🔍 Touch the screen in the area of the object – if the focus does not work, the sensor may be contaminated or damaged.
• 🧹 Clean the lens with a soft napkin (do not use alcohol!).

⚠️ Note: On multi-camera models (e.g. Xiaomi 13 Pro with Leica module), calibration should be done for each lens separately.If the problem persists, you may need to flash the camera through the Fastboot.

6. Frequent calibration errors and how to avoid them

Many Xiaomi users make the same mistakes that negate all calibration efforts, and the most common ones are:

• ⚡ Interrupting the charging process when calibrating the battery, which leads to even more dissynchronization of the controller.
• 📵 Use of non-original chargers that do not provide stable voltage.
• 🧲 Calibration of the compass next to metal objects (keys, coins, magnet covers).
• 🔧 Skipping updates MIUI before calibration of sensors – in new versions, bugs are often corrected.

To avoid problems:

• 📋 Always back up before resetting your settings.
• 🔋 For battery calibration, use only the original memory from Xiaomi.
• 📡 Check the calibration of sensors in different conditions (for example, a compass in an open area).

💡

Calibration is not a panacea. If the problem is hardware (like a bloated battery or a broken sensor), no software method will help. In this case, repair is required.

7.When calibration doesn't help: hardware problems

If you've followed all the instructions, but your phone still doesn't work properly, it could be a physical malfunction.

• 🔋 Battery swollen or phone turns off at 20-30% charge.
• 📱 The screen does not respond to touches in certain areas (e.g., at the edges).
• 🧭 The compass shows polar opposite directions even after calibration.
• 🎯 The gyroscope is not working completely (no reaction to tilts in games and test applications).

The cost of repairs in official service centers Xiaomi:

Important: If your Xiaomi is still under warranty, do not try to disassemble it yourself - this will void warranty obligations.

FAQ: Answers to Frequent Questions