How to turn on the Xiaomi Mi Band 3 bracelet after a complete reset: 5 working ways

Why Mi Band 3 bracelet doesn't turn on after reset and what to do about it

Resetting the settings on Xiaomi Mi Band 3 is a standard procedure when selling a device, fixing software failures or preparing for a new firmware. However, many users face a problem: after a hard reset, the bracelet stops responding to the button, does not sync with the smartphone or hangs on the Mi logo. The reason lies in the features of the firmware and the mechanism of communication with the Mi Fit application.

Unlike current models (such as the Mi Band 7 or Smart Band 8), the third version of the bracelet requires binding to the Xiaomi account immediately after reset. Without this, the device remains in “sleep” mode, even if the screen briefly lights up when pressed. In this article, we will discuss 5 proven activation methods, including manual synchronization, bypassing Bluetooth errors and restoring through the engineering menu.

Important: if you reset through Settings → Reset to factory in the application, and the bracelet still does not turn on, the problem can lie in a discharged battery (even at 10% charge) or a conflict of software versions.

Method 1: Standard activation via Mi Fit

This is a basic method that works 80 percent of the time, but many users miss key steps, which means the bracelet is not identified.

1. Remove the bracelet from the app. Open Mi Fit, go to Profile → Mi Smart Band 3 → Delete the device.
2. Reboot your smartphone. This will clear the Bluetooth cache and eliminate any possible conflicts.
3. Turn on the bracelet. Press the touch button for 5-7 seconds until the Mi logo appears.
4. Add the device again. In Mi Fit, click Add Device → Bracelet → Mi Smart Band 3.

If the synchronization step error appears "failed to connect", check:

• 📱 Mi Band 3 requires Mi Fit no newer than 4.6.0 (newer versions may not support older devices).
• 🔄 Bluetooth Mode. On Android, turn on Settings → Bluetooth → Compatibility mode (if any).
• 🔋 Battery charge: Connect the bracelet to charge for 10-15 minutes, even if the indicator is not on.

Remove the bracelet from Mi Fit|Reboot the smartphone | Charge the bracelet to 30% | Update Mi Fit to 4.6.0| Enable Bluetooth-->

Critical error: if after a successful connection, the bracelet is disabled again after 1-2 minutes, the problem is the conflict of Xiaomi accounts. Make sure you use the same account to which the device was previously associated.

Method 2: Forced synchronization via Bluetooth (for Android)

If the standard method didn’t work, try connecting to the bracelet manually via Bluetooth settings, which bypasses Mi Fit’s bugs but requires you to follow the steps precisely:

1. Open the settings of the smartphone → Bluetooth.
2. Turn on the device search. The list should appear. MI Band 3_XXXX (where XXXX — unique identifier).
3. Click on the device and wait for the password request. Type 0000 or 1234.
4. After connecting, open Mi Fit and try adding the bracelet again.

⚠️ Note: If the bracelet does not appear in the Bluetooth list, this may mean:

• 🔌 Hardware failure of the communication module (requires repair).
• 🔋 Deep battery discharge (plug in to charge for 1-2 hours).
• 📱 Smartphone incompatibility (check the list of supported devices on Xiaomi’s website).

Xiaomi|Samsung|Huawei|iPhone|Other-->

If the connection was successful, but the bracelet is not synchronized with Mi Fit, try clearing the app cache:

1. Go to Settings → Applications → Mi Fit → Storage.
2. Click Clear the cache and Clear the data.
3. Reboot your smartphone and repeat adding the device.

Method 3: Recovery through the Engineering Menu (for power users)

If the bracelet is turned on but does not respond to touch or is stuck on the logo, you can try resetting the settings through a hidden engineering menu.This method is not official and can lead to loss of warranty, but often saves in case of software failures.

Instructions:

1. Connect the bracelet to the charger.
2. Press the touch button for 10-15 seconds until the screen goes out and lights up again.
3. Release the button and immediately press it 5 times in a row (with an interval of ~1 second).
4. If done correctly, a menu will appear with the words “TEST MODE”.
5. Scroll down to the RESET point and confirm the reset.

⚠️ Warning: After resetting through the engineering menu, the bracelet is completely reset, including the firmware data. If it does not turn on after that, you will need firmware through the PC-MiBandTools application (see Method 5).

Method 4: Firmware the bracelet through the PC (last chance)

If none of the previous methods worked, the last option is firmware through a computer, which requires the installation of special utilities and is only suitable for users who are willing to risk the operation of the device.

Tools required:

• 💻 Windows PC 7/10/11.
• 🔌 The Mi Band 3 charging cable (original).
• 📥 MiBandTools program (download from the official website).
• 📄 Firmware for Mi Band 3 (version should match the bracelet region).

Step-by-step:

1. Install MiBandTools and bracelet drivers (compare with the program).
2. Connect the bracelet to the PC via a charging cable (use) USB-Port 2.0 for Stability).
3. Start MiBandTools and select Detect Device.
4. If the bracelet is determined, click Flash Firmware and specify the path to the firmware file.
5. Wait until the process is complete (don’t turn off the cable!).

⚠️ Warning: Flawed firmware can permanently disable the bracelet. If you are not sure of your actions, contact the Xiaomi service center. The cost of recovering from a failed firmware is from 1500 rubles.

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Before you run the firmware, back up the bracelet data via Mi Fit (if it's ever been turned on). To do this, go to Profile → Mi Smart Band 3 → Data Export.

Method 5: Hardware diagnostics (if the bracelet does not show signs of life)

If the Mi Band 3 doesn’t respond to charging, vibrates, or turns on even after all the manipulations, the problem may be hardware.

1. Charging connector

• 🔍 Check the contacts on the bracelet and charger for oxidation or contamination.
• 🧹 Clean contacts with alcohol and cotton swab (do not use metal objects!).
• 🔌 Try charging the bracelet from another adapter (current) ≥500 m).

2. Battery.

• 🔋 If the bracelet is not charged for more than a day, the battery could fail (average service life is 2-3 years).
• 🛠️ Replacing the battery in the service center will cost 800-1200 rubles.

3. Bluetooth module

• 📡 If the bracelet vibrates when connected to charging, but is not detected by Bluetooth, the module may fail.
• 🔧 In this case, only repair or replacement of the fee (cost - from 1500 rubles) will help).

For self-diagnosis, you can use a multimeter:

1. Connect the probes to the bracelet charging contacts.
2. The voltage should be in the range of 4.8-5.2 V.
3. If the voltage is not or is below 4.5V, the problem is the power controller.

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If the bracelet does not respond to charging and is not detected by a PC, in 90% of cases the connector or battery is to blame, self-repair is possible only with soldering equipment and experience with microelectronics.

Frequent Mistakes and How to Avoid Them

Many users make the same mistakes when trying to turn on Mi Band. 3 We put together a top.-5 Failures and ways to prevent them:

1. Use of non-original cables. Cheap analogues may not provide stable power, which means the bracelet doesn't turn on. Always use the original Xiaomi cable.
2. Reset via smartphone settings. Some try to reset the bracelet via Bluetooth Settings → Forget the device. This doesn't work - you only need to reset through Mi Fit or the engineering menu.
3. Ignoring updates: If the bracelet has outdated firmware installed, it may not sync with new Mi Fit versions. Update the firmware before resetting.
4. Connect to multiple smartphones. The Mi Band 3 remembers the last connected device. If you're trying to link it to another phone, first remove it from the Mi Fit on the first smartphone.
5. Zero discharge. If the bracelet is completely discharged, it may not turn on even after you connect to the charger, in which case leave it on charging for 2-3 hours, then try resetting.

To avoid problems in the future, follow simple rules:

• 🔄 Reload the bracelet once a month (press the button for 5 seconds).
• 📱 Do not upgrade to the latest version of Mi Fit if you have Mi Band 3 (optimum version is 4.6.0).
• 🔋 Charge the bracelet at a charge level below 20%.

FAQ: Answers to Frequent Questions