How to turn on Xiaomi Mi Band 4 after rebooting or reset: 5 working ways

Xiaomi Mi Band 4 smartwatches remain among the most popular fitness trackers even years after release, and their reliability and functionality have been appreciated by millions of users, but sometimes the device can “hang” or stop responding to presses after rebooting. If your bracelet does not turn on, do not panic: in 90% of cases, you can solve the problem yourself without contacting the service center.

In this article, we will look at all the possible reasons why the Mi Band 4 may not start after a reboot, from a dead battery to software failures, how to perform a hardware reset, what manipulations with the charger will help to “reanimate” the gadget, and what to do if the bracelet does not show signs of life at all, and we will also provide recommendations for preventing such situations and answering frequent questions from users.

Important: If your Mi Band 4 doesn’t turn on after the firmware update, the algorithm will be different – read about this in the special section.

Why Xiaomi Mi Band 4 won’t turn on after the reboot: the main reasons

Before you start resuscitating the bracelet, you need to understand what caused the malfunction.-5 The most common reasons why Mi Band 4 may not start:

• 🔋 If the bracelet was lying uncharged for a long time (more than 2-3 months), the battery could discharge to such a level that standard charging does not help.
• 🔄 Software failure after update: Failed firmware update or interrupted process can "block out" the device.
• 🔌 Problems with charging contacts: Oxidation or contamination of contacts on the bracelet or charger interferes with normal nutrition.
• 🛠️ Hardware failure: Fall, impact or moisture (despite the stated IP68) Injure internal components.
• 📱 Conflict with the Mi Fit app. Sometimes synchronization failure leads to the bracelet "hanging.

According to service center statistics, 60 percent of the time, the problem is solved by simply recharging the original cable and power supply, another 25 percent is due to software failures that are reset, and only 15 percent are hardware malfunctions that require repair.

If your bracelet doesn't respond to pressing, but when you connect to charging, an indication appears (vibration or flashing of the screen), most likely, the problem is software. If there is no reaction even to charging, it can be both a deep discharge and a hardware breakdown.

Method 1: Standard Reboot and Charging

Start with the simplest one, charging checks and forced reboots, and users often confuse “hang” with a full shutdown, so this method works most of the time.

Steps to reboot:

1. Connect the bracelet to the charger (use the original cable!) and wait for the charging indication to appear (usually a flashing battery icon).

What to do if there is no charging indication:

• 🔌 Check the contacts on the bracelet and charger – they should be clean (wipe with alcohol).
• 🔋 Try another one. USB-port or power supply (sometimes the problem is insufficient power).
• ⏱️ Leave the bracelet on charge for 2-3 hours – perhaps the battery is discharged to zero.

⚠️ Warning: Do not use abrasive materials (steelpaper, metal brushes) to clean contacts, this will damage the coating and worsen conductivity.

Method 2: Hard Reset (Hard Reset)

If the standard reboot doesn't work, the next step is to reset the bracelet completely, and it will return the bracelet to factory parameters and eliminate most software failures, and importantly, after the reset, all the data on the device (steps, pulse, settings) will be deleted.

Resetting instructions:

1. Turn off the bracelet from charging (if it was connected).
2. Find a small hole on the back of the case with the inscription Reset (near the charging contacts).
3. Take a paper clip or toothpick, press and hold the reset button for 10-15 seconds until you feel the vibration.
4. Release the button – the bracelet should reboot and show the Mi logo.

If the bracelet is switched on after reset, but is not synchronized with the Mi Fit application:

• 📱 Remove the bracelet from the list of devices in the application.
• 🔄 Reboot your smartphone.
• 🔗 Re-add Mi Band 4 via Mi Fit → Profile → Add the device.

What to do if the reset button does not work:

• 🔍 Check if the hole is not contaminated - clean it carefully with a needle.
• 💪 Press with great effort (but without fanaticism, so as not to break the mechanism).
• 🔋 Try resetting on a charged bracelet (plug in to charge for 10 minutes before manipulation).

Method 3: Recovery after deep discharge

If the Mi Band 4 had been idle for months, its battery could have run out to such a level that standard charging doesn't help, in which case you need a push to start the process.

The “double charge” method:

1. Connect the bracelet to charging and leave for 1-2 hours (even if there is no indication).
2. Turn off the cable, then reconnect - sometimes this "wakes up" the power controller.
3. Repeat the action 3-5 times with an interval of 5 minutes.

Alternative way (for advanced users):

• 🔌 Use the power supply with the exit 5V/2A (For example, from a smartphone - it gives more current than USB-port.
• 🔋 Connect the bracelet to charging and simultaneously press the touch button for 20-30 seconds.
• ⏱️ If a charging indication appears, do not turn off the cable for at least 3 hours.

⚠️ Warning: If the bracelet heats up while charging or makes unusual sounds (hisping, crackling), immediately turn it off! These are signs of battery damage, which can lead to fire.

Method 4: Solving problems after a firmware update

If the Mi Band 4 stopped turning on immediately after the update, it is likely that there was a firmware failure.

• 📶 Interrupted update (for example, if the smartphone is discharged or lost communication).
• 📥 Incompatible version of firmware (if you installed it manually).
• 🔧 Conflict with modified software (if the bracelet was stitched with custom firmware).

How to restore the workflow:

1. Perform a hardware reset (see Method 2).
2. Connect the bracelet to charging and wait until it loads into emergency mode (usually a flashing screen with an exclamation point).
3. In the Mi Fit app, go to Profile → Mi Band 4 → Update the firmware and repeat the process.

If the bracelet is not defined by the annex:

• 📱 Reinstall Mi Fit on your smartphone.
• 🔄 Reboot your smartphone and bracelet.
• 📡 Turn on the plane mode on your phone for 1 minute, then turn off.

💡

If the bracelet is stuck on the Mi logo after the update, try holding it for 12+ hours, sometimes long-term charging helps restore the firmware.

Method 5: Diagnostics of hardware malfunctions

If none of the above methods worked, it might be a hardware problem.

Signs of hardware breakdown:

• 💧 Getting moisture – even if the bracelet has protection IP68, Extended exposure to water (especially salt water) can damage the cost.
• 💥 Mechanical damage - cracks on the body, dents, traces of impacts.
• 🔥 Overheating – if the bracelet has been heated during charging or working.
• 🔋 Battery bloating - if the body of the bracelet began to "pull", it can not be used!

What you can do on your own:

• 🔍 Visual inspection: check the case for cracks, corrosion or bloating.
• 🎧 Listen to the bracelet: If you hear foreign sounds (such as rattling details) when shaking, it’s a sign of internal damage.
• 🔋 Check the battery: if the bracelet only turns on on charging and immediately turns off, most likely, the battery has failed.

If you find physical damage, self-repair is unlikely to be possible - you will need to replace the components.

1. Contact the authorized Xiaomi service center (the list can be found on the official website).
2. Check the cost of repairs – sometimes it is comparable to the price of a new bracelet.
3. If the warranty is still valid (usually 12 months), the repair can be free.

💡

If the bracelet does not turn on after falling or falling into the water, do not try to charge it - this can aggravate the damage.

Mi Band 4: How to Avoid Failures

To ensure that your bracelet lasts a long time and does not “hang”, follow these recommendations:

Operational rules:

• 🔋 Charge the bracelet regularly – do not allow a discharge below 10%.
• 🚿 Avoid prolonged contact with water, especially hot or salty water.
• 📱 Update the firmware only through the official Mi Fit app.
• 💥 Do not drop or hit the bracelet - its body is not designed for strong mechanical loads.

Storage tips:

• 📦 If you don’t use the bracelet for a long time, keep it in a dry place at room temperature.
• 🔋 Before long-term storage, charge the bracelet by 50-60% – this is the optimal level for lithium polymer batteries.
• 🧴 Periodically (every 2-3 months) clean the charging contacts from oxidation.

What NOT to do:

• ❌ Use non-original chargers – they can damage the power controller.
• ❌ Charge the bracelet from powerful power supplies (more 5V/2A).
• ❌ Disassembling the bracelet yourself will lead to loss of warranty.

Frequent questions about Xiaomi Mi Band 4