The Xiaomi Mi Band 4 fitness bracelet remains a popular gadget even years after its release, but many users are faced with the problem: how to synchronize time if there is no smartphone or Mi Fit app at hand? In standard mode, the bracelet receives time data automatically when connecting to the phone, but what to do if this method is not available?
In this article, we’ll look at all the possible ways to manually adjust time on the Mi Band 4, from using hidden bracelet features to alternative solutions with third devices, how to circumvent system limitations, what nuances are important to consider, and what to do if time is lost after disconnecting from the phone, instructions are suitable for both the original firmware and custom versions like Amazfit or Notify & Fitness.
We will focus on accuracy issues: why the bracelet may be lagging or in a hurry, how to fix it, and what hardware constraints affect the timer. If you travel often or use the Mi Band 4 autonomously, this information will be especially useful.
Why is Mi Band 4 not showing the right time without a smartphone?
Unlike today’s smartwatches, the Xiaomi Mi Band 4 doesn’t have a GPS module or automatic time update via satellites, but all synchronization is done through the Mi Fit app (or its equivalents), which transmits current time, time zone and date data every time you connect, and if communication with your smartphone is interrupted, the bracelet continues to count down based on an internal quartz generator — but it’s not perfect.
The main reasons for the time difference:
- 🔋 Low battery power: at levels below 10%, the bracelet can reset settings, including time.
- ⚙️ Firmware failure: after an incorrect update or hard reset (Reset) the clock is knocked down.
- 🌍 Time zone change: without synchronization with a smartphone, the bracelet does not automatically update the belt.
- ⏱️ Hardware drift: cheap quartz resonator in Mi Band 4 loses up to 1-2 minutes a day.
It is important to understand that without an external source (smartphone or PC), the bracelet cannot physically "know" the exact time. All the methods below are workarounds, not a full-fledged replacement for synchronization. If you are critical to the accuracy of up to a second, consider buying a model with GPS (for example, Mi Band 7 Pro or Amazfit GTR 4).
Method 1: Manually adjusting time through a hidden bracelet menu
Few people know, but the Mi Band 4 has a hidden engineering menu that allows you to manually adjust the time, which works without connecting to the phone, but requires you to follow the steps precisely, and a mistake at any stage can lead to a reset.
Instructions:
- On the main screen of the bracelet, swipe your finger to the left until you reach the point Still (three dots).
- Tap More, then scroll down to Settings (cog icon).
- In the settings menu, find About and tap it 5 times in a row (with intervals of ~0.5 seconds).
- Select Time Settings → Manual Adjust from the Engineering Menu.
- With swipes up/down, set the current time (hours, minutes) and confirm by clicking on the screen.
Warning: After manual adjustment, time will start to "go away" at a rate of ~1 minute per day due to the hardware features of the bracelet, which is only suitable for temporary adjustment.
☑️ Preparation for manual time setting
Method 2: Synchronize through a third-party device (PC or other bracelet)
If you don't have a smartphone, but you have access to a computer or other Xiaomi gadget (like a second Mi Band or smartwatch), you can use it as a proxy, which is more complicated, but it gives a more stable result.
Synchronization options:
- 💻 Through a PC with Bluetooth adapter: you will need Mi Band Tools or Gadgetbridge (support manual time sending).
- 📱 Through the second bracelet: if you have another Mi Band, synchronize the time on it, then bring both devices to each other and wait for automatic data transfer (does not work on all firmware).
- 🔄 Smart speaker: Some Xiaomi Smart Speaker models can transfer time over Bluetooth Low Energy (BLE).
Detailed instructions for PC:
- Download and install Gadgetbridge (a free alternative to Mi Fit).
- Turn on Bluetooth on your PC and connect Mi Band 4 through the program.
- In the Device → Time settings menu, select Sync Now.
- If the time is not updated, restart the bracelet (press the button for 10 seconds).
Why can't Gadgetbridge see the bracelet?
Method 3: Use of alternative firmware (Amazfit, Notify & Fitness)
The standard firmware of the Mi Band 4 is very limited, but enthusiasts have developed custom versions that add manual time settings. For example, Notify & Fitness for Mi Band 4 firmware allows you to:
- ⏰ Set the time manually through the bracelet menu.
- 🌐 Automatically update time zones when crossing borders.
- 🔄 Synchronize with multiple devices at the same time.
How to stitch the bracelet:
- Download the archive with firmware from the official GitHub repository.
- Install Mi Band 4 Tools on PC (requires.NET Framework 4.8).
- Connect the bracelet to your PC via Bluetooth and run the firmware via the command: MiBand4Tools.exe --flash firmware.bin
- After the reboot, the Time Sync → Manual Set will appear in the bracelet menu.
⚠️ Warning: Unofficial firmware may contain errors, overheat or reduce battery life.Before firmware, backup the original version via Mi Band 4 Tools --backup.
| Firmware | Manual timing | Autosynchronization | Risks. |
|---|---|---|---|
| Stock (Mi Fit) | ❌ No. | ✅ Only with a smartphone. | Low. |
| Notify & Fitness | ✅ Yes. | ✅ Multi-device. | Medium (possible bugs) |
| Amazfit (port) | ✅ Yes. | ❌ Only manually. | High (unstable work) |
Method 4: Resetting the bracelet to factory settings
If the Mi Band 4 time is lost due to a software failure, it can sometimes be a hard reset, which will return the bracelet to the box-like state, but will delete all the data (steps, pulse, alarm clocks).
How to reset:
- Disconnect the bracelet from your phone (forget the device in Mi Fit).
- On the bracelet itself, go to Settings → About the device → Reset.
- Confirm the action by pressing the screen for 3 seconds.
- After rebooting the bracelet will request synchronization with the smartphone – if it is not, the time will be reset by 00:00 1.01.2019 (the release date of the firmware).
After discharge:
- 🔄 Time will be knocked down, but the drift of the quartz generator will temporarily decrease.
- ⚡ The bracelet will connect to new devices faster.
- ⚠️ All user settings (alarm clocks, notifications) will have to config again.
💡
If the bracelet does not turn on after reset, connect it to charging for 10 minutes - sometimes the battery discharges to a level at which the device does not respond to buttons.
Frequent Mistakes and How to Avoid Them
When you try to set your time to Mi Band 4 without a phone, users often face typical problems, and let's look at the most common and ways to solve them.
Error 1: The bracelet does not save manual time settings
Reason: You probably haven't confirmed the change in the engineering menu, so after setting the time, you'll have to wait for the bracelet to vibrate, and if you haven't vibrated, repeat the procedure.
Error 2: Time is lost after switching off/on
Reason: This is a feature of the hardware platform.The Mi Band 4 doesn't have a nonvolatile memory (RTC) to store time, so when the power is completely off, the watch is reset.Solution: avoid completely draining the battery.
Mistake 3: Gadgetbridge can't see the bracelet
Causes and solutions:
- 🔌 Mi Fit conflict: Remove the Mi Fit app or disable auto-start.
- 🔄 Outdated Bluetooth stack: Update adapter drivers via official website.
- 📱 Bracelet connected to another device: Reset connections on the bracelet (Settings) → Bluetooth → Forget all the devices).
💡
If none of the methods worked, check the physical condition of the bracelet: cracks in the case, moisture ingress or bloating of the battery can disrupt the timer.