How to properly turn on the Xiaomi Mi Band 4 fitness bracelet after charging: a detailed guide

Xiaomi Mi Band 4 is one of the most popular fitness bracelets on the market, but even with such a proven device, sometimes there are problems. The most common situation is that you put the gadget on charge, waited 100%, and it does not show signs of life. Why does this happen and how to get the bracelet to turn on? In this article, we will analyze all possible reasons and solutions, from basic actions to hidden functions, which are not written in the official instructions.

It is important to understand that the process of turning on the Mi Band 4 after charging can vary depending on the state of the battery, the version of the firmware and even the way you connect to the charger. We will not limit ourselves to the standard “press the button”, but consider all possible scenarios – from banal discharge to software failures that require resetting.

If your bracelet does not respond to pressing, does not show charging or hangs on the logo - do not rush to carry it to the service. In 90% of cases, the problem can be solved independently in 5-10 minutes.

Why Mi Band 4 doesn't turn on after charging: the main reasons

Before you try to turn on the bracelet, you need to understand why it doesn't respond, and the reasons can be divided into three categories: hardware, software, and charging. Let's look at each in detail.

Hardware problems are the least common, but they are the most difficult to fix without a specialist.

• 🔋 Battery damage (blown, electrolyte leakage)
• 💧 The swelling of the water under the body (despite the stated 5) ATM)
• 🔌 Breakdown of charging port contacts
• 🛠️ Mechanical damage to the board after falling

Software failures are the most common cause of a dead bracelet, including:

• 🤖 Firmware freeze after update
• 🔄 Data conflict when synchronizing with the Mi Fit application
• 📱 Reset settings on the smartphone, which was tied to the bracelet
• ⏳ Prolonged inactivity (more than 3 months without recharging)

Finally, charging problems are often disguised as a malfunctioning bracelet.

• ⚡ Use of a non-original cable or adapter
• 🔌 Flawed adjoining contacts (dirty, oxidation)
• 🔋 Charging from USB-port
• ⏱️ Insufficient charging time (less than 2 hours)

If the bracelet doesn't show signs of life, start by checking the charger and the cable, and 60 percent of the time, this is where the problem lies.

Preparation for inclusion: checking charging and contacts

Before you try to turn on the bracelet, make sure it's really charged. Even if the indicator on the charger was on, it doesn't guarantee that the battery has received enough power.

Use the original cable and power adapter 5V/1A

Clean the contacts of the bracelet and charger with an alcohol napkin

Connect the charging to the socket, not to the USB-port

Keep the bracelet on charge for at least 2-3 hours

Check if the case heats up during charging (light heat is normal)-->

Pay special attention to the charging contacts. On the Mi Band 4, they are located on the back of the body and often get contaminated with sweat or dust. Take a toothpick or soft brush and clean carefully:

• 🔌 Two golden contacts (nutrition)
• 📶 Small pin on the right (for data transfer)

If the bracelet is still unresponsive, try an alternative way to charge:

1. Connect the charger to a powerful adapter (for example, from a smartphone).
2. Put the bracelet on the charger and hold for 10-15 seconds.
3. Press and hold the touch button for 10-15 seconds.
4. If the bracelet vibrates, release the button and wait for the switch to turn on.

If after this manipulation, the Mi logo appeared on the screen, but it does not load further, then the problem is the firmware. We will talk about this in the next section.

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If the bracelet doesn’t respond to charging, try connecting it to another power source, such as a quick Charge-enabled Xiaomi charger that can give enough current to wake up a dead battery.

How to turn on Mi Band 4 after charging

If the bracelet is charged but not turned on, try one of these methods. Start with the simplest and move on to the more complex.

1. Standard on (touch button)

The most obvious method that works in 80% of cases:

1. Place the bracelet on a flat surface with the screen up.
2. Touch the touch button under the screen and hold it for 3-5 seconds.
3. Wait for the vibration and the appearance of the Mi logo.

If the bracelet vibrates, but the screen doesn't catch fire -- it may have turned on, but the backlight is off. Try tapping the screen or pressing the button again.

2. Forced reset

If the standard switching fails, run a hard reset:

1. Connect the bracelet to the charger.
2. Hold the touch button for 15-20 seconds until you feel a double vibration.
3. Release the button and wait for the reboot (can take up to 1-2 minutes).

This method resets temporary data, but does not remove the binding to the Mi Fit account.

3. Including through the Mi Fit app

If the bracelet reacts to charging (indicators are on), but does not turn on the button, try to “wake” it through your smartphone:

1. Open the Mi Fit app and go to Profile → Mi Smart Band 4.
2. Click Update Data or Sync.
3. If the bracelet reacts, it will turn on and start synchronizing.

If the application displays the message "Device disabled", then the bracelet is discharged or defective.

4.Reset to factory settings

Last resort, if other methods don't work, beware: this will remove all data from the bracelet, including the account binding.

1. Connect the bracelet to the charger.
2. Hold the touch button for 30 seconds until the reset menu appears.
3. In the menu, select Reset (the wrench icon) and confirm the selection.

After resetting, the bracelet will turn on automatically and require a new setup via Mi Fit.

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If the bracelet vibrates when you press a button, but the screen remains black, the problem is the backlight or the firmware. Try updating the software with Mi Fit or reset.

What to do if the Mi Band 4 does not show charging

Situation: You put the bracelet on charge, but the indicator doesn't burn, and the battery level doesn't change.

• 🔌 Problems with the cable or adapter
• 🔋 Full discharge of the battery (you need to "wake up" it)
• 🛠️ Failure of the charging controller

First, check the power source:

• Connect the charger to another outlet.
• Try another cable (preferably original).
• Use an adapter with an output current at least 1A.

If the charging indicator still does not burn, perform "resuscitation" of the battery:

1. Connect the bracelet to the charger.
2. Hold the touch button for 10-15 seconds.
3. If the bracelet vibrates, release the button and leave it on charging for 1-2 hours.

If the charging indicator does not catch fire after this, the power controller may fail, in which case only repair or replacement of the bracelet will help.

Errors after turning on: what to do if the bracelet is not working correctly

The bracelet is on, but it's acting weird? Let's look at the typical problems and their solutions.

1.The bracelet is switched on but immediately switched off

Reasons:

• 🔋 Low charge (you need to keep charging longer).
• 🤖 Firmware failure (update required).
• 💧 Short circuit (if the bracelet falls into the water).

Solution: Keep the bracelet charging for 3-4 hours, then perform a forced reboot.

2.The screen does not respond to touch

Possible causes:

• 📱 Conflict with the Mi Fit app (reinstall it).
• 🔄 Sensor freeze (reboot will help).
• 💧 Moisture under the screen.

Solution: Reset your bracelet settings or update your firmware.

3.The bracelet vibrates, but the screen is black.

This is a sign of a problem with the lighting.

• Increase the brightness of the screen in the Mi Fit settings.
• Perform reset to factory settings.
• Light a flashlight on the screen - if the image is visible, then the illumination is faulty.

4.The bracelet is switched on but not synchronized with the smartphone

The problem is usually with the phone settings:

• 📱 Enable Bluetooth and Geodata.
• 🔄 Reboot your smartphone and bracelet.
• 📲 Remove the bracelet from the Bluetooth device list and re-attach.

If nothing works, try tying the bracelet to another smartphone, and if it works, there’s a problem with your phone (like an outdated version of Android).

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If the bracelet is turned on but discharges quickly, check for apps that may be consuming battery, such as constantly syncing with Google Fit or Apple Health can reduce the time to 1-2 days.

How to avoid inclusion problems in the future

To ensure that Mi Band 4 is turned on the first time and works steadily, follow these recommendations:

• 🔋 Charge the bracelet every 2-3 weeks, even if it is not completely discharged. Prolonged inactivity leads to a deep discharge of the battery.
• 🚿 Avoid soap or shampoo on the case – they can damage seals and contacts.
• 📱 Regularly update the firmware through Mi Fit. New versions fix the inclusion errors.
• 🔌 Use only original accessories for charging.
• 📦 Keep the bracelet in a dry place, away from direct sunlight.

Pay special attention to firmware updates. Xiaomi regularly releases patches that fix bugs with the inclusion.

1. Open the Mi Fit and go to the bracelet section.
2. Click Update the firmware (if the option is available).
3. Confirm the update and wait until the end (the bracelet will reboot automatically).

If the bracelet has not been updated for a long time, the process can take up to 10-15 minutes.

When to contact the service: signs of serious malfunctions

Not all problems can be solved by yourself. Contact Xiaomi Service Center if:

• 🔥 The bracelet gets very hot during charging or working.
• 💧 Under the body visible moisture or condensate.
• 🔋 Battery swelled (body deformed).
• 🛠️ The bracelet does not respond to charging or resetting.
• ⚡ The charging indicator flashes red, but the battery level does not rise.

The service may offer:

• 🔧 Diagnosis of fees (cost) ~500–1000 ₽).
• 🔋 Battery replacement (~1500–2000 ₽).
• 📱 Flashing through service equipment (~800–1200 ₽).

If the bracelet is warranty, the repair will be free, so you don't lose the warranty.

• Do not open the body yourself.
• Do not use unoriginal accessories.
• Save the check and the box from the bracelet.

The average lifespan of the Mi Band 4 is 2-3 years, and if the bracelet is older, it may be cheaper to buy a new one than to repair the old one.

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If the bracelet stops turning on after falling or contacting water, don't try to charge it! This can lead to a short circuit.

FAQ: Frequent questions about Mi Band 4 inclusion