Xiaomi Mi Band 4 won’t turn on after reset: 5 working ways to solve it

Why does Mi Band 4 not respond to the button after resetting?

Resetting the Xiaomi Mi Band 4 is standard when selling, transferring a device or fixing software failures. However, many users face the paradox of a successful reset via the Mi Fit app or physical button, the bracelet stops turning on, the screen remains black, there is no vibration, and charging does not help, the reasons for this behavior lie in the features of firmware and hardware interaction.

The main problem is that resetting the settings on the Mi Band 4 not only resets user data, but also system sync parameters with the phone. If the bracelet was untied from the Xiaomi account before the reset or the procedure was interrupted, the device can “hang” in the activation standby mode. In 80% of cases, this is not a hardware breakdown, but a software unit that can be fixed without contacting the service.

In this article, we will discuss:

• 🔧 Hardware methods of forced inclusion (through charging, button, combinations)
• 📱 Software Recovery Methods through Mi Fit and Alternative Applications
• ⚠️ Common mistakes that make the bracelet “die” after reset
• 🔄 What to do if none of the methods worked (warranty, repair, replacement)

Method 1: Forced reboot through charging

The easiest and safest method is to simulate a hard restart via a charger connection, which works even if the bracelet is completely discharged or freezes after reset, and you will need the original Mi Band 4 cable (or magnetic contact compatible).

Algorithm of action:

1. Connect the bracelet to the charger (preferably from the network, not from the network) USB-port).
2. Hold the touch button under the screen for 15-20 seconds.
3. Release the button when the Mi logo appears on the screen (it may take 2-3 attempts).
4. Wait until 5 minutes for the full load. If the screen is black, repeat the steps.

⚠️ Note: Do not use unoriginal low-charge current cables (less than 50 mA) this may cause the power controller to be incorrectly initialized and the bracelet will not turn on even after restarting.

Connect to the original charger|Hold the 15 button.+ seconds|Release when the logo appears|Wait 5 minutes until full loading-->

Method 2: The button combination to exit the "dead" mode

If charging didn't work, try a hardware combination that resets the power controller state. This method is effective when the bracelet doesn't respond to charging or short presses. Importantly, the combination only works on the Mi Band 4 with firmware version 1.0.9.14 and higher.

Instructions:

1. Remove the bracelet capsule from the strap.
2. Connect it to the charger.
3. Press and hold the button for 10 seconds, then, without letting it go, briefly touch the sensor 3 times (with an interval of 1 second).
4. Release the button after the vibration. The bracelet should reset.

💡 If the bracelet vibrates but the screen doesn't turn on, the problem may be the backlight. Try to hold it to a bright light source, sometimes you can see the image at a certain angle.

Method 3: Recovery through the Mi Fit app

If the hardware methods didn't work, connect the bracelet to your phone via the official app. This is the right way to do it if the reset was done via Mi Fit, but the sync is interrupted. Importantly, the phone and the bracelet must be on the same Wi-Fi network (for models with NFC, turn it on your smartphone).

Step-by-step:

1. Remove the bracelet from the list of devices in Mi Fit (if it is still listed there).
2. Reinstall the app (clear the cache in your phone settings).
3. Start Mi Fit and select Add Device → Mi Smart Band 4.
4. Follow the instructions on the screen. When you request a connection, tap the button on the bracelet (even if it's "dead").
5. Wait for the firmware update (it can take up to 10 minutes).

⚠️ Note: If the application gives an error "failed to connect", check:

• 📵 Is the phone powered off or background limit for Mi Fit.
• 🔄 Reboot your phone and router (sometimes changing your network from 5 GHz to 2.4 GHz helps).
• 📱 Update Mi Fit to the latest version (Google Play or App Store).

Method 4: Firmware via Mi Band 4 Tools (for advanced)

If standard methods don't work, the radical option is manual firmware via PC, which requires MediaTek drivers and Mi Band 4 Tools, and is suitable for devices that:

• 🔌 Defined by the computer as MTK Preloader but not included.
• 🔄 Hang on the Mi logo after reset.
• 📛 Have a damaged firmware (for example, after an interrupted update).

Instructions:

1. Download Mi Band 4 Tools and unpack the archive.
2. Connect the bracelet to the PC via a charging cable (should be determined as to how to use it). COM-port).
3. Run the MiBand4Tools.exe file on behalf of the administrator.
4. Select Flash Firmware and specify the path to the firmware file (download the current version from the support site).
5. Press Start and wait until it is completed (don’t turn off the bracelet!).

Warning: Incorrect firmware can permanently disable the bracelet. If you are not sure of your actions, contact the service center.

💡

PC firmware is the last resort, and 90% of the time, 1-3s help, and only use it if the bracelet doesn't respond to the charger and the button and Mi Fit doesn't see it.

Method 5: Contact Xiaomi Service Center

If none of the methods worked, the reason may lie in a hardware malfunction:

• 🔋 Battery failure (blown-up, loss of capacity).
• 🔌 Damage to the power controller (often after falls or moisture intrusion).
• 📱 Screen plume detachment (bracelet vibrates, but display does not work).

In these cases, professional diagnostics are required. Official Xiaomi service centers provide free check with a valid warranty (period - 12 months from the date of purchase).

💡 Tip: Before visiting the service, take screenshots of the purchase check (if it is electronic) and save the Xiaomi account data - this will speed up the guarantee check.

Mi Band 4 Frequent Mistakes and How to Avoid Them

Many of the problems with turning on the bracelet after reset are due to the wrong actions of the user. Here are the TOP-5 errors and their consequences:

1. Reset via phone settings, not the bracelet. If you delete the bracelet from Mi Fit before the hardware reset, it may lose its account binding and lock. Always reset on the device itself first (Settings → Reset).
2. Interrupt the firmware update process: If you break the connection during the update via Mi Fit (for example, leave the Bluetooth range), the bracelet can "block", in which case only the firmware through the PC will help.
3. Use of non-original chargers. Cheap cables with AliExpress often don't provide stable voltage, causing power controller failures. Use only the original Xiaomi cable.
4. Reset with low battery charge (less than 20%). If the bracelet is discharged, the reset may be interrupted halfway through the process, leaving the device inoperable. Always charge it to 100% before manipulation.
5. Trying to flash the bracelet through third-party utilities without backup. Some "custom" firmware (for example, for Russification) may contain errors leading to complete loss of functionality. Use only official software.

⚠️ Warning: If you reset a bracelet tied to another Xiaomi account, unlocking it will require access to your previous account, without which the device will become a “brick” – even the service center will not be able to restore it.

FAQ: Answers to Frequent Questions