How to reboot Xiaomi Mi Band 4: from a simple restart to a complete reset

The Xiaomi Mi Band 4 fitness bracelet is one of the most popular wearables, but even it sometimes fails: it stops syncing, freezes on the logo or does not respond to touch. 90% of the time, a banal reboot solves the problem, but not everyone knows how to do it correctly. In this article, 5 proven ways to restart, including soft restart, forced reset and restore through the Mi Fit app.

It’s important to understand the difference between the types of reboots: a soft restart saves all the data, and a hard reset puts the bracelet back to factory settings, erasing training statistics and personal settings, and we’ll take both options apart, and we’ll also tell you how to avoid a brick when a failed reset happens, and what to do if the bracelet doesn’t turn on after the reboot.

1.Soft reboot: when the bracelet brakes or glitch

If the Mi Band 4 is slow to respond to swipes, doesn’t show notifications, or is intermittently “hanging,” try a soft restart first.

To implement:

• 🔄 Open the bracelet menu by swiping up the screen.
• 📱 Find the Reboot item (in English firmware - Reboot).
• ✅ Confirm the action by touching the tick.

The bracelet will turn off and automatically turn on in 10-15 seconds. If the Reboot option is not on the menu, then your version of the firmware does not support it, move to the next method.

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After a soft reboot, sync the bracelet with the Mi Fit app to update your steps and heart rate data, which will help avoid discrepancies in statistics.

2. Forced reset: if the bracelet is getting stuck and does not react

When the Mi Band 4 is fully frozen on one screen, does not respond to touch or shows endless loading, a forced restart is required, a technique that simulates battery extraction (although it is not removable in the bracelet) and works even in critical failures.

Instructions:

1. Remove the bracelet from your hand and place it on a flat surface with the screen up.
2. Find the touch button on the back (under the charging connector).
3. Hold it for 10-15 seconds until the screen goes out.
4. Release the button and the bracelet will automatically reset.

If the Mi Band 4 freezes again after a forced reboot, this may indicate firmware damage or hardware failure, in which case only a complete reset or firmware reflash (more on this).

Hard Reset: Return to Factory Settings 3

Hard reset erases all the data from the bracelet: training, alarm settings, Bluetooth passwords and binding to your Xiaomi account.

• 🔧 Bracelet does not sync with the phone despite multiple reboots.
• 📵 Disconnected or No Connection Error appears on the screen.
• 🔄 After updating the firmware, the device is unstable.

To perform the discharge:

1. Open the Mi Fit app on your phone.
2. Go to Profile → Xiaomi Mi Band 4 → Untie the device.
3. On the bracelet, press the touch button for 20-30 seconds until the vibration and Mi logo appear.
4. Release the button and the reset process will begin (it will take ~1 minute).

Make a backup of the data in Mi Fit|Charge the bracelet to at least 50%|Untie the device from the account|Prepare your phone for re-synchronization-->

Once reset, the bracelet will return to the box-like state, and you will need to re-attach it to your account and adjust the settings.

4.Reboot via Mi Fit app: a safe way

If the bracelet works but is unstable (for example, counting steps incorrectly or not showing notifications), try rebooting it through the official app, which is softer than hard reset and saves basic data.

Step-by-step:

1. Open the Mi Fit and connect to the bracelet.
2. Go to Profile → Xiaomi Mi Band 4 → Device settings.
3. Scroll down and select Reboot the device.
4. Confirm the action in the pop-up window.

It'll take about 30 seconds. After you restart, check the bracelet. If the problem persists, update the firmware through the same settings section.

5.Reboot after firmware update

Firmware updates for Mi Band 4 usually go smoothly, but sometimes after them the bracelet begins to behave strangely: quickly discharge, do not sync, or show an Update Failed error.

First, perform a soft restart through the bracelet menu, then:

• 📱 Open Mi Fit and check the firmware version in Device Settings → The bracelet.
• 🔄 If the version has not changed, re-run the update.
• ⚡ After successful installation, restart the bracelet again.

If the update is “hang” during the installation phase:

⚠️ Warning: Do not unplug the bracelet during the upgrade! this can damage the bootloader. Wait at least 30 minutes - if the process is not complete, perform a forced reboot (press the button for 20 seconds).

6.What to do if the bracelet does not turn on after restarting

If the Mi Band 4 shows no signs of life after any of the reboots, follow this algorithm:

1. Check the charge. Connect the bracelet to the charger for 1-2 hours. Sometimes a deep discharge blocks the power on.
2. Try another charger. Use the original cable and power adapter (5V/1A). Non-original charges may not provide the right current.
3. Perform an emergency reboot. Press the touch button for 30 to 40 seconds (until double vibration).
4. Check on another phone. Set Mi Fit on the second smartphone and try to connect.

If the bracelet is still not turned on, this may indicate:

• 🔋 Battery malfunction (blown, deep discharge).
• 📱 Damage to the power controller (often after falls or moisture intrusion).
• 🔧 Firmware failure (solved by flashing through the PC).

⚠️ Warning: If the bracelet does not respond to charging and rebooting, do not try to disassemble it yourself - this will deprive you of warranty.

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In 80% of cases, the dead Mi Band 4 can be reanimated with a long charge (4+ hours) + forced reboot.

FAQ: Frequent questions about the reboot of Xiaomi Mi Band 4