Buying a new activity tracker is always an exciting moment, especially when it comes to the popular Xiaomi Mi Band 3 model. However, after taking the device out of the box, many users face an unexpected obstacle: the screen of the gadget does not light up, and no button responds to presses. This is normal, since the manufacturer specifically discharges the batteries before sending to save their life during long-term storage in stock.
You don't need any sophisticated tools or knowledge to activate the device. The whole startup process is about a simple physical action, which is connecting to the power source. It's important to understand that the software part of the tracker is completely locked until the first charge, so trying to find a hidden power button or reset settings in this state will be useless.
In this guide, we will discuss all the steps in detail: from physical battery activation to initial setup in the Mi Fit app. You will learn how to properly remove the capsule from a silicone strap, why you should not use powerful power supplies from smartphones and what to do if the charging indicator does not light up immediately after connecting.
Primary activation and charging of the device
The first and critical step is to remove the main module, or "capsule," from the silicone strap. The Mi Band 3 design assumes that the charging is done separately from the bracelet so that the cloth and metal of the clasp are not wet. Carefully remove the oval tracker from the rubber base by pressing the bottom of the capsule with your thumb.
Then you have to connect the device to the charging cable that comes with it, and there are two contact pads on the bottom of the tracker, and there are two response pins on the cable, and the orientation matters: the pins must match the recesses on the case, otherwise the charging will not start. After the connection USB-cable connector must be inserted into the computer port or power adapter.
When you're connected successfully, you should have a battery animation with a percentage of charge on the screen. If the screen is black, try moving the cable slightly or rubbing the contacts with dry cloth, as oxidation or dust can prevent contact. Do not use power supplies with currents above 1A, so as not to damage the charge controller.
After the indication appears, leave the gadget to charge for at least 15-20 minutes. This will be enough time to unlock the software and store energy to turn on. Usually, it takes about an hour to fully charge, but for the first run, a surface charge is enough.
⚠️ Warning: If the charging indicator flashes or shows an error, immediately turn off the device.This may indicate a short circuit or overheating, which is dangerous for the lithium polymer battery.
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Use it. USB-computer port or standard power supply to 5V/1A. Fast charging from modern flagships may not work properly with low-power electronics bracelet.
Capsule extraction and contact check
Many beginners try to charge the bracelet without taking it out of the strap, which is a mistake.Silicon is a dielectric, but the design of Xiaomi's charging cable doesn't allow you to reach the contacts without removing the module.To remove the capsule, flip the bracelet screen down and push the tracker out of the hole in the rubber tape with your thumb.
Notice the contacts on the back of the device. These are two small golden pads that need to be clean. If you've used the device before or it's been lying around for a long time, they could have formed a layer of oxide or got sweat. The perfect cleaning is a cotton swab that's slightly soaked in alcohol, but then you need to make sure that the contacts dry.
The charging cable itself is a short wire with USB-So you can put a jack on one side and a plastic pad with pins on the other, and you can put the capsule in this snug, right up to the click or stop, and make sure that the convex side of the screen is looking up and the contacts are tightly attached to each other.
- 🔋 Carefully push the module out of the strap without using sharp objects so as not to damage the body.
- 🧹 Wipe the contacts on the tracker and cable with dry soft cloth before connecting.
- 🔌 Put it in. USB-cable to the port to the point, making sure the orientation of the pins.
- 👀 Watch the screen: A logo or battery icon signifies a successful start.
☑️ Pre-charging check
Connection with a smartphone and installation of Mi Fit
Once the device is charged and turned on, you need to link it to the smartphone. This will require the Mi Fit app (or Zepp Life, since the service was renamed). Download the program from official Google Play stores or the App Store. Installation from third-party resources is not recommended due to security risks and incorrect notifications.
Before pairing, make sure your phone is enabled with Bluetooth and geolocation (GPS). In modern Android versions, geolocation access is required for Bluetooth scanning to work. Open the app, sign up or sign in to your Xiaomi Account, then go to profile and select Add Device.
The app will start searching for nearby devices. When the Mi Band 3 image appears on the phone screen, click on it. The bracelet itself will request pairing with vibration and icon. Confirm the action by tapping the touch button on the tracker. The synchronization process will take a few seconds, after which the time and date on the bracelet will be updated automatically.
It is important not to try to connect the bracelet through the standard Bluetooth menu of the phone settings. Direct pairing through the system settings often leads to data synchronization errors and no notifications.
⚠️ Note: If the application is looking for a device for a long time, try to restart the smartphone and the bracelet itself (in the bracelet settings, find the item "Tear" or "Reset", if it is available, or just wait for the discharge and charge again).
Configuring the interface and functionality
After successful synchronization, you can see the world of settings. The Xiaomi Mi Band 3 screen supports various dials that can be changed directly in the application. In the Device Profile -> Dial settings section, you can access the store where you can choose a static image or animation.
You can also choose from the app menu which apps will be broadcasting messages on your wrist, which can be WhatsApp, Telegram, SMS, calls, even weather notifications, and for each category you can adjust the vibration or turn it off completely so that the bracelet does not disturb you during meetings or sleep.
The tracker also includes sleep monitoring, pedometer and pulse measurement. The pulsemeter needs to be tightly attached to the skin to function properly, and you can set the frequency of automatic heart rate measurements in the settings, but frequent measurements significantly reduce the autonomy of the device.
Don't forget to set the display to the screen. You can choose which data you'll display when you swipe: weather, pressure, steps, pulse, alarm clock, and you can also change the order of the widgets to highlight the most important metrics for you.
Hidden possibilities of the dial
Solving Common Problems at Startup
Despite the simplicity of the device, users often face difficulties. One of the most common problems is that the bracelet does not turn on even after charging. In this case, it is worth checking the integrity of the charging cable. The contacts on the cable may have oxidized or moved away from the board. Try to slightly press the cable to the contacts with your finger while charging.
Another common situation is that the device charges but doesn't connect to the phone, and here the problem is often the Bluetooth cache, so you go to the phone's Bluetooth settings, you go to the Mi Band 3 list, you select "Forget the device" or "Cancel pairing," and then you restart the phone and try to find the bracelet again through the app.
If the bracelet is stuck and does not respond to touch, rebooting will help. There is no physical button on the Mi Band 3, so you need to find the "Rup" or "More" -> "Reset" item in the menu (swipe to the end). If the menu is not available, you can put the bracelet on charging, wait for on, and then quickly remove and recharge several times in a row to initiate a system reboot.
The table below shows the main symptoms and methods of their elimination:
| Problem. | Possible cause | Decision |
|---|---|---|
| Screen black | Deep discharge. | Leave on charging for 1-2 hours |
| No vibration. | Vibration mode is off. | Enable in the profile settings in Mi Fit |
| Wrong time. | No synchronization. | Open the application for auto-update |
| Losing touch | Bluetooth range | Get closer to the phone (up to 5-7 meters) |
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Most of the problems with starting the Mi Band 3 are solved by completely discharging the device to 0% and then long-term charging with the original cable.
Update of firmware and calibration
After initial setup, Mi Fit can offer firmware updates, and software updates are an important step, as new versions fix sensor errors, improve Bluetooth connectivity stability, and add new dials, which cannot be interrupted.
During the upgrade, the screen will burn and the percentages will change. The device can reboot several times. Make sure that the battery is at least 50%, or better put the bracelet on charge before the upgrade, although this is not officially required, but is good practice.
After the update, it is recommended to calibrate the pedometer. Go a known distance (for example, 100 meters) and compare the data on the bracelet. If the error is large, you can enter a correction factor in some third-party applications (not in the official Mi Fit), but with standard means, calibration occurs automatically in the background for several days of wear.
Remember that after the update, the settings may reset to factory ones, and you will have to repeat the pairing procedure. You may also change the menu interface, new items will appear, or the logic of swipes will change.
What if the update is 99% stuck?
Can I use Mi Band 3 with an iPhone?
How to reset the bracelet to factory settings?
Starting and setting up Xiaomi Mi Band 3 is a straightforward process, following the manufacturer’s logic: the main thing is to provide an initial charge and use the official control application. Proper notification setting and regular wearing will allow the tracker to become your reliable assistant in health monitoring.
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For maximum pedometer accuracy, wear a bracelet on your left hand (by default) and tighten the strap so that the sensor fits tightly to the skin, but does not squeeze the vein.