How to Turn on Xiaomi Mi Band 4: 5 Proven Ways

Why is your Mi Band 4 not included?

The Xiaomi Mi Band 4 fitness bracelet remains one of the most popular wearables even years after its release. However, many users are faced with the problem: the bracelet does not respond to pressing, does not show a screen or does not show signs of life at all, the reasons can be different from a completely discharged battery to software failures.

In this article, we’ll look at all the ways you can turn on the Mi Band 4, including forced reboot, reset, and troubleshooting. You’ll learn how to tell hardware from software failure, and what to do if the bracelet doesn’t respond to charging. Instructions will work for all firmware versions, including the latest updates from 2026.

Before you start the action, check the obvious: the Mi Band 4 does not have a physical on button – activation occurs automatically when connected to the charger or after full discharge / charging. If the screen remains black for more than 10 minutes on charging – this is already a reason for diagnosis.

Method 1: Standard Energization through Charging

The most common method is to connect the bracelet to the charger. The Mi Band 4 automatically turns on when you start charging if the battery is discharged to a critical level.

• 🔌 Connect the bracelet to the original charging cable (or certified equivalent). Using unoriginal charging can damage the battery.
• ⏳ Leave the device on charge for at least 15-20 minutes. Even if the screen does not light up immediately, wait for the charging indicator to appear (the red light bulb on the back of the module).
• 📱 Make sure the bracelet and charger contacts are clean.Contamination or oxidation can block the power supply.
• 🔄 If the screen doesn’t catch fire after 30 minutes, try reconnecting the cable or using another one. USB-port.

Important: Mi Band 4 may not turn on if the battery is discharged to 0% and takes time to gain a minimum charge, in which case the charging indicator will appear only after 5-10 minutes.

Check the integrity of the charging cable |

Clean the bracelet contacts with an alcohol napkin |

Connect to 5V/1A power supply (do not use fast charging!)|

Wait 20 minutes before trying again

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⚠️ Note: if the bracelet does not respond to charging for more than 1 hour, do not try to disassemble it yourself - this can lead to loss of warranty or damage to internal components.

Method 2: Forced Reset (Hard Reset)

If the bracelet doesn't turn on even after a long charge, try a forced reboot, which resets temporary data in the device's memory and often helps with freezes.

Instructions for Mi Band 4:

1. Remove the bracelet capsule from the strap.
2. Find the touch button on the back (under the screen).
3. Connect the bracelet to the charger.
4. Press the touch button for 10-15 seconds until you feel a vibration or see the Mi logo.
5. Release the button and wait for the full download (can take up to 2 minutes).

If the bracelet is turned on after rebooting, but it is unstable (for example, it does not sync with the phone), reset the settings through the Mi Fit application:

1. Open Mi Fit. → Choose your bracelet.
2. Go to Device Settings → Further → Reset settings.
3. Confirm the action and wait for the process to be completed.

Method 3: Activate through the Mi Fit application

If the bracelet is turned on but does not complete the setup (stuck on the logo or asks to connect to the phone), try activating it through the official app.This method will also help if the Mi Band 4 has previously been dropped or bought used.

Step-by-step:

• 📲 Install the latest version of Mi Fit from Google Play or App Store.
• 🔗 Sign up or sign in to your Xiaomi account (required!).
• ➕ Click Add Add the device → Choose a bracelet → Mi Smart Band 4.
• 🔍 Turn on Bluetooth on your phone and allow Mi Fit to access the location (required to find the device).
• 🤝 Bring the bracelet to the phone at a distance of 5-10 cm and wait for the connection.

If the app does not find the bracelet:

• 🔄 Reboot your phone and bracelet.
• 📵 Make sure that the Mi Band 4 is not connected to another device (untie it in Bluetooth settings).
• 🛠️ In Mi Fit go to Profile → Settings → Clear the cache.

I recently bought my first fitness bracelet.|

I've been using it for over a year.|

I took the d/u, there were problems |

Another option

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⚠️ Note: when activated via Mi Fit, the bracelet automatically updates the firmware. If the process is interrupted (for example, turn off Bluetooth or phone), the device may freeze on the logo).

Method 4: Diagnostics of malfunctions

If none of these methods worked, the problem may be the hardware, so make your own diagnosis of the following:

1. Battery check

Symptoms of a faulty battery:

• 🔋 The bracelet only works on charging.
• ⚡ Charging reaches 100% in 5-10 minutes (false display).
• 🔄 The device turns off at the slightest load (for example, when synchronizing).

Solution: Replace the battery in the service center, average cost 800-1500. ₽ (2026).

2. Checking the display and sensor

If the bracelet vibrates, but the screen remains black:

• 💡 Hold the device to bright light – maybe the backlight doesn’t work, but the image is there.
• 🔧 Check your reaction to touch: swiping your finger across the screen should make you feel a slight vibration.

Reason: plume detachment or matrix damage, cost 1,000 to 2000 to repair. ₽.

3. Checking the charging socket

Oxidation or contamination of the contacts can block charging.

1. Use a cotton swab dipped in isopropyl alcohol.
2. Gently wipe the contacts on the bracelet and charger.
3. Let dry for 5-10 minutes before connecting.

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If the bracelet does not respond to charging, try connecting it to the computer through USB-Ports on the back of the system unit – they often give a more stable voltage than charges from phones.

Method 5: manual flashing (for experienced users)

If the bracelet is turned on but is not working properly (e.g., constantly rebooting or not synchronizing), manual flashing can help, a method that requires experience and is used in extreme cases.

You'll need:

• 🖥️ Windows computer 7/10/11.
• 🔌 Original cable for Mi Band 4.
• 🛠️ Programme MiBand4Tools (download XDA Developers).

Step-by-step:

1. Connect the bracelet to your computer via a charging cable.
2. Start MiBand4Tools and select Flash Firmware.
3. Download the latest firmware for your model (e.g. 1.0.9.54 for the international version).
4. Press Start and wait for the process to complete (5-10 minutes).
5. Do not turn off the bracelet until the message Success.

⚠️ Warning: the wrong firmware can permanently disable the bracelet. If you're not sure what you're doing, contact the service center.

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Flashing helps in 80% of software failures, but does not solve hardware problems (for example, damage to the battery or display).

Frequent Mistakes and How to Avoid Them

Many users make common mistakes when trying to turn on Mi Band 4, and here are the most common ones and ways to prevent them:

• ❌ Use of non-original chargers → It can cause overheating or damage to the power controller.Always use a kit cable or certified analogues.
• ❌ Interruption of the updating process → If the bracelet is updated via Mi Fit, do not turn off Bluetooth or close the application. this can lead to a "brick" (complete inoperability).
• ❌ Storage of the bracelet discharged → If you don't use the device for more than a month, the battery can lose capacity. Charge the bracelet to 50-60% before long-term storage.
• ❌ Self-disassembly of the hull → The Mi Band 4 has fragile plumes that are easy to damage.If you need to clean contacts, use a soft brush or alcohol without disassembling the device.

Also avoid the following actions:

• 🚫 Charging the bracelet from powerful adapters (>5V/1A).
• 🚫 Exposure to high temperatures (for example, leave in the sun or near the battery).
• 🚫 Use of aggressive cleaning products (acetone, gasoline).

FAQ: Answers to popular questions