How to turn on the Xiaomi Mi Band 4 fitness bracelet after charging: full instruction

The Xiaomi Mi Band 4 fitness bracelet remains one of the most popular activity tracking gadgets, despite the release of new models. Its simplicity, reliability and affordable price attract millions of users. However, even with such a proven device, sometimes difficulties arise — for example, when the bracelet does not turn on after charging. Why does this happen? How to properly start the bracelet after recharging to avoid failures?

In this article, we'll look at all possible scenarios, from standard on-line to emergency situations, which buttons and gestures are used to activate, how to check the charger's health, and what to do if the Mi Band 4 doesn't respond to presses, and also the typical user errors that cause the bracelet to "hang" and how to fix them without going to the service center.

If your bracelet is dead or has been inactive for a long time, the switching procedure may be different than usual, and we will describe each step in detail so that you can bring the device back to life on your own - even if you have not experienced similar problems before.

Why does the Xiaomi Mi Band 4 bracelet not turn on after charging?

Before we get to the instructions, it is important to understand the possible reasons why the Mi Band 4 does not respond to or turn on after charging, and can be divided into three categories:

1. Hardware problems – malfunction of the battery, charging contacts or on button.
2. Software failures are firmware errors, “hang” of the system after deep discharge.
3. User errors - incorrect connection of the charger, interruption of the charging process.

For example, if the bracelet had been discharged for several months, its battery could go into protective mode, and it would require a special procedure to exit it, or the charging contacts could oxidize, which prevents normal nutrition.

Typical signs of malfunction

The reason can be determined by the behavior of the bracelet:

• 🔋 Charging indicator doesn't burn - a problem with cable, contacts or battery.
• 🔄 The bracelet vibrates but does not turn on - firmware failure or deep discharge.
• ⚡ Charging is underway, but after disconnecting the device turns off - battery malfunction.
• 📵 No reaction to presses – hardware failure or button locking is possible.

If you experience one of these symptoms, don't rush to carry the bracelet for repair, and 80 percent of the time, you can fix the problem yourself by following our recommendations.

Preparation for turn on: check the charger and contacts

Before you try to turn on the Mi Band 4, make sure the charging is correct. Often users miss the obvious points that make the bracelet seem faulty.

1. Use the original cable. Non-original chargers may not provide the desired voltage, which causes the bracelet to fail to charge or charge incorrectly.
2. Clear the contacts. The magnetic contacts of the bracelet and charger may accumulate dust or oxides, wipe them with a soft napkin soaked in alcohol.
3. Check the power source. Connect the charger to another one. USB-Port or adapter: sometimes the problem is that the port is not sufficiently powerful (for example, on some laptops).

Also, look at the charge indicator on the bracelet, which, when connected correctly, should light up red or green (depending on the charge level). If the indicator doesn't glow, try to move the bracelet slightly on the charger, sometimes the contacts don't fit tightly.

Original cable used|Bracelet contacts and charging clean|The charging indicator is lit red/green|The bracelet was charged for at least 30 minutes.-->

How long does it take to charge the Mi Band 4?

The charging time depends on the level of discharge:

If the bracelet does not turn on even after 2-3 hours of charging, move to the next section - a forced start may be required.

Standard inclusion of Xiaomi Mi Band 4: step-by-step instructions

If the bracelet is charged but does not automatically turn on, follow the following steps:

1. Unplug the bracelet from charging. Make sure the contacts are not closed.
2. Press and hold the touch button (under the screen) for 5-10 seconds, and the vibration and Mi logo should appear.
3. Wait for the load. It can take up to 30 seconds to get the main menu on the screen.

If the bracelet does not respond to the hold of the button, try short presses (3-5 times in a row), sometimes this helps to "wake up" the device after a deep discharge.

Once successfully enabled, sync the bracelet with the Mi Fit or Zepp app (depending on the firmware version) to help update data and avoid future crashes.

Video Instructions (if visualization is required)

If the description seems complicated, check out the official video from Xiaomi on the inclusion of the Mi Band 4:

How to turn on Xiaomi Mi Band 4 after charging (opens in a new tab).

Bracelet not included: forced start and reset

If standard on-line didn't work, try hard reset, which resets the time settings and often helps with freezes. Importantly, after resetting, all the data on the bracelet (steps, pulse) will be deleted, but it can be recovered from the application.

Resetting instructions:

1. Connect the bracelet to the charger and wait until the indicator lights up (even if it flashes red).
2. Turn off the charging and immediately hold the touch button for 20-30 seconds.
3. If the bracelet vibrates and the logo appears, the reset was successful. If not, repeat the procedure 2-3 times.

If the forced start didn't work, the problem might be the firmware, and then the flashing through the Mi Fit app will help.

• 📱 Open Mi Fit and go to Profile → Mi Band 4 → Firmware update.
• 🔄 If you have an update, install it. If you don't, click Manual Update Checker.
• ⚠️ Do not disconnect the bracelet from your phone during the process!

💡

If the bracelet is not detected in Mi Fit, try connecting it via Bluetooth in the phone's manual settings, sometimes helping to wake up the device.

Frequent User Mistakes and How to Avoid Them

Many of the problems with the Mi Band 4 are caused by the user's incorrect actions, and here are the most common mistakes and ways to prevent them:

• ⚡ Use non-original charging. Cheap cables can damage the battery or power controller. Always check the voltage (should be 5V/1A).
• 🕒 If you turn off the bracelet from charging too early (before the green light comes on), it may not store enough power to turn on.
• 💧 Moisture on contacts, even if the bracelet is waterproof (standard 5) ATM), salt water or sweat can cause corrosion. After swimming, wash your contacts with fresh water.
• 🔋 Storage in a discharged state. If you leave the bracelet discharged for several months, the battery may fail. Charge it at least once every 2-3 months.

Another common problem is that the bracelet turns on and off, which is a sign of a battery failure or a power controller, and in this case, only a replacement battery at the service center will help.

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If the bracelet doesn't turn on after all the manipulations, check it on another phone. Sometimes the problem lies in the failure of the Bluetooth module of the smartphone, not in the Mi Band 4 itself.

What do you do if nothing helps?

If you've tried all the ways, but the Mi Band 4 still doesn't turn on, it might be a hardware malfunction.

1. If the bracelet is warranty, repairs will be free, and a list of centers can be found on mi.com.
2. If you're an electronics expert, you can measure the voltage on the battery (it should be 3.7-4.2V).
3. Buy a new battery. The Mi Band 4 sells original and compatible batteries (priced from 500). ₽). Replacement takes 10-15 minutes.

The cost of repairs in the service usually does not exceed 1000-1500 ₽, If the bracelet is older than 2-3 years, it is better to consider buying a new model (for example, Mi Band 7 or Mi Band 8).

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Before visiting the service center, back up your data to Mi Fit (if the bracelet has ever been turned on). To do this, go to Profile → Mi Band 4 → Backup.

Comparison with new models

If you’re thinking about replacing the Mi Band 4, compare it to the current models:

FAQ: Frequent questions about incorporating Xiaomi Mi Band 4