How to set up time on Xiaomi Mi Band 4 without a smartphone: a step-by-step guide

The Xiaomi Mi Band 4 fitness bracelet syncs time with the connected smartphone automatically, but what if the phone is not at hand and the clock on the device is lost? This problem is relevant for travelers, owners of several gadgets or those who are temporarily left without the main device. Unlike the newer models (Mi Band 5/6/7), the fourth version does not support manual time setting through the menu - but you can get around this limitation.

In this article, you will find three working ways to synchronize time without a smartphone: from using alternative devices to software workarounds. We will also analyze common errors (for example, resetting the time after removing the battery on January 1, 2015), provide a table of compatibility methods and answer frequent questions. All instructions are tested on firmware 1.0.9.28 and 1.0.9.56, the most common versions for the Mi Band 4.

Why does Mi Band 4 lose time without a phone?

Unlike a mechanical watch, the Mi Band 4 does not have its own source of exact time. The device relies on data from a smartphone that is transmitted via Bluetooth Low Energy (BLE) protocol. If the bracelet is not connected for more than 24 hours, it goes into energy saving mode and uses an internal quartz generator - its error reaches ± 30 seconds per day.

Critical scenarios in which time is lost:

• 🔋 Full discharge of the battery (bracelet reset on 2015-01-01 00:00 — first-story release date).
• ✈️ Flying through multiple time zones without synchronization.
• 📱 Linking to another smartphone with a different time zone.
• 🔄 Resetting settings through Settings → Resetting the bracelet menu.

The Mi Band 4 does not have a module. GPS or NTP-synchronization (as in the Amazfit or Huawei Watch smartwatch), so self-adjusting time is possible only by workarounds.

Method 1: Using a second Bluetooth device (tablet, laptop, smartwatch)

If you have any Bluetooth 4.0+ device (an Android/iOS tablet, a Windows/macOS laptop, or even other smartwatch), you can use it for temporary synchronization. This method does not require installing the Mi Fit app, which is a fairly standard OS tool.

Step-by-step instructions for Windows 10/11:

1. Turn on Bluetooth on your laptop and put the Mi Band 4 into pairing mode (click on the wristband touchpad and hold for 10 seconds until vibration appears).
2. Open Settings → Devices → Bluetooth and other devices.
3. Click Add Device → Bluetooth and select MI Band 4 from the list.
4. After connecting, open the Command Prompt (Win) + R → cmd) and enter: powershell -command "(Get-Date).ToString('yyyy-MM-dd HH:mm:ss') | Out-File -FilePath 'C:\mi_time.txt'" This will create a file with the current system time.
5. Send the file to the bracelet via Control Panel → Devices and Printers → MI Band 4 → Send the file (the feature is not available on all PCs).

For Android tablets, the algorithm is simpler:

Connect Mi Band 4 to your tablet as a new device|

Install the Mi Fit or Zepp app (if the tablet supports it)|

Run manual synchronization through the "Device Profile" section |

Turn off the bracelet after the time update (to save charge)

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⚠️ Note: Some tablets (such as the Samsung Tab A or Lenovo Yoga) may not be able to transfer time correctly due to manufacturer restrictions. OS.

Method 2: Manual time change through the engineering menu (for advanced)

The hidden engineering menu in the Mi Band 4 allows you to manually adjust system parameters, including time, which requires care, as wrong actions can lead to soft-brick (bracelet will stop turning on), we recommend it only if other methods have not worked.

Instructions:

1. Translate the bracelet to Engineering Mode: On the home screen, swipe up 5 times in a row. Click on the Settings icon 10 times. A menu will appear that says ENG.

Time Adjust

hours

minute

Confirm the changes with a long press on the touchpad.

Limitations of the method:

• ⏱️ Time will reset after reloading the bracelet.
• 📅 You can’t change the date, just hours and minutes.
• 🔋 The battery consumption will increase by ~15% due to active engineering.

Method 3: Update firmware via PC (to fix time crashes)

If the Mi Band 4 is regularly lost (for example, after each discharge), the problem may be in the damaged firmware. Update via PC allows you to reflash the bracelet without a smartphone, while resetting the system clock.

Tools required:

• 🖥️ Windows PC 7/10/11 macOS.
• 🔌 Mi Band 4 charging cable (required for PC connection).
• 📦 Archive with firmware (can be downloaded on the mi-band-4-firmware.ru).
• 🛠️ Programme MiBand4Tools or Gadgetbridge.

Step-by-step:

1. Download the current firmware for your version of the bracelet (check the model number on the box or in Settings → About the device).
2. Connect the Mi Band 4 to your PC via a charging cable (use the rear USB 2.0 port for stability).
3. Start MiBand4Tools and select Flash Firmware.
4. Specify the path to the firmware file (.fw or.bin format).
5. Wait until the process is complete (the bracelet will reboot automatically).

After flashing, the time is synchronized with the PC system time. If this does not happen, reset through Settings → Reset.

💡

Before you run your firmware, check your bracelet version! Devices for the Chinese market (CN designation on the box) are not compatible with global firmware (Global).

Table: Compatibility of methods with different scenarios

Typical errors and their solutions

Even after a successful setup, the time on the Mi Band 4 may not be right, and let’s look at the most common problems and ways to fix them:

1.Time reset to 2015 after battery is removed

This is a hardware feature of the bracelet, and when you completely discharge your internal memory, it's erased.

• 🔋 Charge the device to 100% before any manipulation.
• 📱 Sync with your smartphone at least once every 3 days.

2 Time goes forward or backward for a few hours.

The reason is a time zone failure.

• 🌍 Manually install the correct belt in Mi Fit (even if you don't have a phone, borrow from a friend).
• 🔄 Reset the bracelet through Settings → Reset.

3. After synchronization, the time is displayed incorrectly (for example, 15:00 instead of 16:00)

This is due to summertime or automatic transition settings on the source device.

• ⚙️ Turn off automatic daylight saving time in tablet/PC settings.
• ⏰ Set the time manually with the correction in mind.

💡

If the bracelet shows a time exactly 1 hour apart, check the time zone settings on the device that last synced, often in the wrong city (for example, Moscow instead of St. Petersburg).

⚠️ Note: If after all the manipulations, the time on the Mi Band 4 continues to be lost more than once a week, this may indicate a malfunction of the quartz generator. In this case, contact the service center - repair will cost less than buying a new bracelet (the price of the time chip). ~300 rubles).

FAQ: Frequent questions about setting the time