How to reset the Xiaomi Mi Band 4: Learn to restart or hard reset your fitness tracker

If your Xiaomi Mi Band 4 is frozen, refusing to sync, or acting strangely, the instinct is often to “reset it.” That’s where many users go wrong. Restarting and hard resetting sound similar, but on the Mi Band 4 they are very different actions with very different consequences.

Understanding this difference matters because one option is quick, safe, and non-destructive, while the other wipes the tracker back to factory condition. Using the wrong one can mean losing activity history, breaking app pairing, or creating extra setup work you didn’t actually need.

This section will walk you through exactly what a restart does, what a hard reset does, how to perform each step by step, and when you should choose one over the other so you can fix problems confidently instead of guessing.

What a Restart Does on the Mi Band 4

A restart is the simplest and safest troubleshooting step. It refreshes the Mi Band 4’s operating system without deleting any of your data, settings, or pairing information.

When you restart the Mi Band 4, it clears temporary software glitches that can cause the touchscreen to lag, the display to freeze, or syncing to stall. Think of it as giving the band a clean breath rather than wiping its memory.

Your step count, heart rate history, sleep data, watch faces, alarms, and connection to the Mi Fitness or Zepp Life app all remain intact after a restart.

How to Restart the Xiaomi Mi Band 4

On the Mi Band 4, restarting is done directly from the touchscreen, not from the phone app. Make sure the band has some battery left before starting.

Wake the screen, then swipe up or down to navigate to the More menu. Scroll until you see Settings, tap it, then scroll to Reboot. Tap Reboot and confirm when prompted.

The screen will go black briefly, the Mi logo will appear, and the band will load back into your normal watch face. This process usually takes under 30 seconds.

When a Restart Is the Right Choice

A restart is ideal for minor but annoying issues. These include delayed notifications, syncing that takes longer than usual, inaccurate step counts for the day, or a touchscreen that doesn’t register swipes properly.

It’s also the best first step if the band feels sluggish after a firmware update or hasn’t been restarted in weeks. Because the Mi Band 4 has limited memory and processing power, a simple reboot can noticeably improve responsiveness and battery behavior.

If a restart solves the problem, there is no reason to move on to a hard reset.

What a Hard Reset Does on the Mi Band 4

A hard reset, also called a factory reset, completely erases the Mi Band 4 and returns it to its original out-of-the-box state. This is a much more drastic action.

All locally stored data on the band is deleted, including activity history that hasn’t synced, alarms, custom settings, and installed watch faces. The band is also unpaired from your phone and removed from your Mi account.

After a hard reset, the Mi Band 4 behaves like a brand-new device and must be set up again from scratch using the companion app.

How to Hard Reset the Xiaomi Mi Band 4

You can perform a hard reset directly from the band itself, even if syncing is broken. This makes it useful when the phone app can no longer communicate with the tracker.

Wake the screen and navigate to More, then Settings. Scroll down to Factory reset and tap it. Confirm the reset when asked.

The band will restart automatically and display the pairing screen. At this point, you’ll need to open the Mi Fitness or Zepp Life app on your phone and pair the band again as if it were new.

What Data Is Lost During a Hard Reset

Any fitness data that has already synced to your Mi account is safe and can be restored once you re-pair the band. However, unsynced data stored only on the band is permanently lost.

This includes steps, workouts, sleep tracking, and heart rate readings recorded since the last successful sync. Custom vibration alerts, alarms, and display preferences are also erased.

For this reason, it’s always a good idea to attempt a manual sync in the app before performing a hard reset, if the band is still responsive enough to connect.

When a Hard Reset Is Necessary

A hard reset should be used only when simpler fixes fail. This includes situations where the Mi Band 4 refuses to pair, gets stuck in a syncing loop, shows persistent connection errors, or becomes unresponsive despite restarting.

It’s also the correct step if you’re giving the band to someone else, selling it, or switching to a new phone and want a completely clean setup. In these cases, a factory reset prevents account conflicts and pairing errors later.

If you’re unsure which option to choose, always try a restart first. Moving to a hard reset is easy, but undoing one is not.

When You Should Restart Your Mi Band 4 (Freezes, Lag, and Minor Sync Issues)

Before jumping to a factory reset, it’s worth knowing that many everyday problems on the Mi Band 4 are caused by temporary software hiccups rather than anything serious. A simple restart refreshes the band’s system without erasing data, settings, or pairing information.

If your tracker still turns on, responds to touch, and shows menus—even if it’s acting oddly—a restart is almost always the right first move. Think of it as clearing the band’s short-term memory, not wiping it clean.

Common Signs a Restart Is All You Need

A restart is ideal when the Mi Band 4 freezes on a screen, feels laggy when swiping, or takes unusually long to wake up. These slowdowns often appear after long uptime, heavy notification use, or a firmware update.

Minor sync issues are another classic trigger. If steps or heart rate data stop updating in the app, or sync only works after several attempts, restarting the band can reinitialize the Bluetooth connection without breaking the pairing.

You may also notice delayed vibrations, alarms that trigger late, or the screen ignoring the first tap. These are all software-level glitches that rarely justify a hard reset.

Why Restarting Works for These Problems

The Mi Band 4 runs a lightweight operating system designed for long battery life, not constant multitasking. Over time, background processes like Bluetooth syncing, notification handling, and heart rate sampling can stall or conflict.

Restarting closes those processes and reloads the firmware in a clean state. It’s similar to rebooting a phone or computer after it starts behaving unpredictably.

Because the band uses an AMOLED display and a single capacitive button for navigation, even small input delays can feel more severe than they actually are. A restart often restores the snappy, responsive feel you’re used to.

What a Restart Does Not Affect

Unlike a hard reset, restarting the Mi Band 4 does not erase any data. Your step count, sleep tracking, workouts, heart rate history, and synced records remain intact.

Pairing with your phone stays active, and your Mi or Zepp Life account remains linked. Custom watch faces, alarms, vibration patterns, and display settings are preserved exactly as they were.

Battery life is also unaffected in the long term. In fact, if the band was draining faster than usual due to a stuck process, a restart may actually improve standby time and restore the typical multi-day endurance the Mi Band 4 is known for.

Situations Where Restarting Is Preferable to Resetting

If the band is still usable and you can navigate the menus, restarting should always come before a factory reset. This is especially true if the issue appeared suddenly and the band was working fine earlier the same day.

It’s also the safer option when you’re troubleshooting on the go. Restarting takes less than a minute, doesn’t require your phone, and carries no risk of data loss.

Only when restarts fail to resolve repeated freezes, persistent sync errors, or pairing problems should you consider moving on to a hard reset. Treat restarting as routine maintenance, not a last resort.

How Often It’s Okay to Restart Your Mi Band 4

There’s no harm in restarting the Mi Band 4 occasionally. Some users make it a habit to reboot once every few weeks, especially if they rely heavily on notifications or continuous heart rate tracking.

If you find yourself needing to restart daily or multiple times a week, that’s a sign something deeper is wrong. In those cases, a firmware update, app reinstall, or eventual hard reset may be necessary.

For most owners, though, a restart is a quick, low-risk fix that restores smooth performance and reliable syncing without disrupting daily fitness tracking.

How to Restart the Xiaomi Mi Band 4: Step-by-Step On-Band Method

Now that you know when a restart makes sense, the next step is actually doing it on the band itself. The Mi Band 4 includes a built-in reboot option, so you don’t need your phone, the Mi or Zepp Life app, or a charger nearby.

As long as the touchscreen is responsive enough to navigate menus, this method is the fastest and safest way to refresh the tracker’s system.

Before You Begin

Make sure the Mi Band 4 has at least a small amount of battery left. While a restart doesn’t consume much power, an extremely low charge can prevent the reboot from completing properly.

You’ll also want to take the band off your wrist. This avoids accidental touches and makes swiping through menus more precise, especially if the screen has been laggy or misreading inputs.

Step-by-Step Restart Instructions

1. Wake the Mi Band 4 by tapping the capacitive button or raising the band. The main watch face should appear.

2. Swipe up or down until you reach the More menu. This is typically at the bottom of the list, depending on your menu order.

3. Tap More to open it, then scroll until you see Settings.

4. Enter Settings and swipe until you find Reboot.

5. Tap Reboot. A confirmation screen will appear asking if you want to restart the band.

6. Tap the checkmark to confirm. The screen will go black, and the Mi logo will appear after a few seconds.

The entire process usually takes under 30 seconds. Once the watch face returns, the restart is complete and the band is ready to use.

What You’ll See During the Restart

After confirming the reboot, the display briefly turns off. This is normal and indicates the band is shutting down background processes and reloading the system.

When the Mi logo appears, the tracker is starting back up. You don’t need to press anything during this stage, and removing it from the charger or touching the screen won’t speed things up.

If the Screen Is Laggy but Still Responds

Even if the Mi Band 4 feels sluggish, missed swipes, delayed taps, or stuttering animations usually still allow access to the Reboot option. Move slowly through the menus and give each tap a moment to register.

This is often enough to clear memory hiccups that cause delayed notifications, inaccurate heart rate readings, or syncing delays with your phone.

If the Band Is Partially Frozen

If the screen turns on but won’t scroll smoothly, try waking it several times and swiping gently rather than quickly. The Mi Band 4’s small AMOLED display and single-button navigation can be less forgiving when the software is under strain.

As long as you can reach the Settings menu, a restart is still possible and often resolves the freeze entirely.

What If the Reboot Option Is Missing?

On the Mi Band 4, the reboot feature is always present in the Settings menu. If you don’t see it, the band may be truly frozen or stuck on a single screen.

In that situation, restarting from the band itself may not be possible. The next steps would involve charging the device or moving on to a reset method using the companion app, which is covered later in the guide.

What to Expect After Restarting

Once restarted, the Mi Band 4 should feel noticeably smoother. Touch response typically improves, animations return to their usual fluidity, and syncing with your phone often resumes normally within minutes.

Because the Mi Band 4 is known for its lightweight design, comfortable TPU strap, and long battery life, a successful restart usually brings it back to that reliable, unobtrusive daily-wear experience without any further action needed.

When a Hard Reset Is Necessary (Pairing Problems, Selling the Band, or Persistent Bugs)

If a normal restart brings the Mi Band 4 back to life, that’s always the preferred fix. But there are situations where restarting simply isn’t enough, and continuing to troubleshoot without a full reset only wastes time.

A hard reset completely wipes the band and returns it to factory condition. This is a more serious step, but it’s sometimes the only reliable way to fix deeper software problems or safely hand the tracker over to someone else.

Restart vs Hard Reset: Why the Difference Matters

Restarting refreshes the Mi Band 4’s system memory without touching your data. Your step history, heart rate logs, alarms, watch faces, and pairing information all remain intact.

A hard reset, by contrast, erases everything stored on the band itself. That includes fitness data not yet synced to your phone, Bluetooth pairing credentials, custom settings, and any downloaded watch faces, returning the tracker to the same state it was in when first removed from the box.

Because the Mi Band 4 relies heavily on the companion app for syncing and backup, understanding this distinction helps you avoid unnecessary data loss.

Persistent Pairing and Syncing Problems

One of the most common reasons to hard reset a Mi Band 4 is stubborn pairing trouble. If the band refuses to connect after changing phones, switching Xiaomi accounts, or reinstalling the Mi Fit or Zepp Life app, the Bluetooth pairing record can become corrupted.

You may notice symptoms like endless “pairing failed” messages, the band appearing connected but not syncing data, or the app prompting you to pair again every time it opens. When these issues persist even after restarting both the band and your phone, a hard reset often clears the broken pairing state.

In these cases, a reset allows the Mi Band 4’s Bluetooth module to start fresh, which is especially important given its older Bluetooth hardware and limited onboard memory.

Preparing the Mi Band 4 for Sale or Gifting

If you’re selling, gifting, or handing down your Mi Band 4, a hard reset is essential. Simply unpairing it from your phone does not remove all personal data stored on the band.

A reset ensures your activity history, sleep data, alarms, and notification settings are completely erased. This protects your privacy and prevents the next user from encountering pairing conflicts tied to your Xiaomi account.

Given the Mi Band 4’s durable aluminum capsule, scratch-resistant AMOLED screen, and still-impressive battery life, it’s common for these trackers to change hands. Resetting it properly avoids confusion during the new setup and makes the band feel genuinely “new” again.

Ongoing Bugs That Survive a Restart

Some software issues dig deeper than a temporary freeze. Repeated missed notifications, wildly inaccurate heart rate readings, touch input failing in certain menus, or watch faces that refuse to load correctly can all point to corrupted system files.

If these problems return immediately after every restart, a hard reset is the cleanest way to rebuild the band’s software environment. This is particularly relevant on the Mi Band 4, where firmware updates over time can occasionally leave behind unstable settings or cached data.

Resetting forces the tracker to reload its default configuration, which often restores the smooth scrolling, reliable tracking, and long multi-day battery performance the band is known for.

What Gets Erased During a Hard Reset

Before proceeding, it’s important to know exactly what you’ll lose. A hard reset deletes all locally stored fitness data, including steps, workouts, heart rate history, and sleep tracking that hasn’t been synced to your phone.

It also removes alarms, vibration patterns, notification permissions, custom watch faces, brightness levels, and language preferences. The Bluetooth pairing link to your phone and Xiaomi account is completely removed.

If your data has already synced to the Mi Fit or Zepp Life app, it will typically remain safe in your account. Anything not synced, however, is permanently lost.

When You Should Not Hard Reset Yet

If your Mi Band 4 still pairs, syncs intermittently, or responds to touch, try restarting first and confirm the app is fully up to date. Many minor bugs are caused by outdated app versions or temporary phone-side Bluetooth issues.

It’s also worth checking battery level before resetting. A very low battery can cause unstable behavior that mimics software corruption, especially on an older band that’s seen years of charging cycles.

A hard reset should be your final step once simpler fixes have failed or when you intentionally want a clean slate.

What Happens Immediately After the Reset

Once reset, the Mi Band 4 boots into its initial setup screen, ready to pair like a brand-new device. You’ll need to re-add it through the companion app, reconfigure notifications, and choose your preferred watch face.

While this setup takes a few minutes, the payoff is a tracker that behaves predictably again. In most cases, users report smoother touch response, faster syncing, and more consistent daily usability after a proper hard reset.

This fresh start is often what restores the Mi Band 4 to its original appeal: lightweight comfort, dependable fitness tracking, and set-it-and-forget-it battery life that still holds up remarkably well for a budget wearable.

What Data Is Erased During a Mi Band 4 Hard Reset (And What Stays in Your Mi Account)

After the fresh-setup screen appears, most users immediately ask the same question: what exactly was wiped, and what can still be recovered. Understanding this distinction is crucial, especially if you rely on long-term fitness trends or are resetting the band before handing it to someone else.

A Mi Band 4 hard reset only affects what’s stored on the tracker itself. Anything that has already synced to your Mi account through the Mi Fit or Zepp Life app usually remains intact.

Data That Is Completely Erased From the Mi Band 4

A hard reset deletes all locally stored activity data on the band. This includes unsynced steps, workout sessions, heart rate readings, sleep tracking, and idle alerts that were recorded but never uploaded to the app.

All user settings are also removed. Alarms, event reminders, vibration intensity, custom vibration patterns, brightness levels, language settings, and Do Not Disturb schedules are cleared.

The band also forgets all personalization. Custom watch faces, display layout choices, and shortcut menu configurations are erased, returning the interface to its factory default layout.

Bluetooth pairing information is fully removed as well. The Mi Band 4 no longer recognizes your phone, tablet, or Mi account, which is why it behaves like a brand-new device after the reset.

What Happens to Fitness Data That Was Already Synced

If your Mi Band 4 was syncing regularly before the reset, your historical data is typically safe. Steps, sleep history, heart rate trends, and logged workouts that were uploaded to the Mi Fit or Zepp Life app remain stored in your Mi account.

Once you re-pair the band and sign in with the same account, that historical data continues to appear in the app. The band itself does not re-download old activity logs, but your long-term charts and records remain unaffected.

This cloud-based approach is one of the Mi Band 4’s biggest strengths for a budget tracker. Even years later, your fitness history can still be accessed on a new phone or replacement band, as long as you use the same account.

Data That Cannot Be Recovered Under Any Circumstances

Anything that was never synced before the reset is permanently lost. This includes workouts recorded while your phone was off, Bluetooth was disabled, or the app wasn’t running properly.

The Mi Band 4 has limited onboard storage by design. Once that local memory is cleared during a hard reset, there is no recovery tool or workaround to retrieve it.

This is why it’s always worth attempting a manual sync before resetting, even if the band feels slow or partially unresponsive. A successful sync can preserve days or weeks of data that would otherwise disappear.

What Stays Linked to Your Mi Account

Your Mi account itself is not deleted or altered by a band reset. Profile details such as age, height, weight, fitness goals, and preferred units remain unchanged.

App-level settings, permissions, and connected services stay intact on your phone. This includes Google Fit integrations, notification permissions, and regional settings within the app.

If you later pair a different Xiaomi tracker, your account history and preferences carry over seamlessly. The reset only severs the relationship between that specific Mi Band 4 and your account.

Resetting for Resale or Gifting: What the Next User Sees

After a hard reset, the Mi Band 4 contains no personal data and no account links. The next user sees the standard pairing screen and must connect it to their own Mi account.

They cannot access your previous activity history, notifications, or settings. From a privacy standpoint, a hard reset is sufficient preparation before selling or giving the band away.

Physically, the band remains unchanged. Its lightweight capsule, soft TPU strap, and familiar curved display feel the same on the wrist, but digitally it’s a clean slate.

Why This Matters for Daily Usability

Knowing what’s erased helps you reset with confidence rather than hesitation. When done intentionally, a hard reset often restores smooth touch response, reliable syncing, and stable battery behavior.

For a tracker that’s prized for its long battery life, comfort during sleep tracking, and simple day-to-day fitness monitoring, clearing out corrupted settings can bring the Mi Band 4 back to its dependable, low-maintenance rhythm.

As long as your data is synced beforehand, a hard reset is less of a risk and more of a reset button in the truest sense.

How to Hard Reset the Xiaomi Mi Band 4 Directly from the Band

If syncing has failed, the screen is behaving erratically, or you’re preparing the Mi Band 4 for a new owner, a hard reset performed directly on the band itself is the cleanest solution. This method does not require the Mi Fit or Xiaomi Wear app and works even when the phone connection is unreliable.

Before proceeding, it’s worth reiterating the distinction: a restart simply reboots the tracker, while a hard reset completely wipes user data and removes the existing account pairing. What follows is the full factory reset process using only the band’s touchscreen.

What You Need Before Starting

Make sure the Mi Band 4 has at least 20–30 percent battery remaining. If the battery is critically low, the reset process may fail or leave the band stuck mid-setup.

You don’t need your phone nearby, but if you plan to re-pair immediately afterward, keeping Bluetooth enabled and the app installed will make the transition smoother. Once the reset begins, there is no way to recover unsynced activity data.

Step-by-Step: Hard Reset Using the Mi Band 4 Touchscreen

Wake the Mi Band 4 by tapping the capacitive button beneath the display or lifting your wrist. From the watch face, swipe up or down to scroll through the menu until you reach “More.”

Tap “More” to enter the extended settings menu. Continue scrolling until you see “Settings,” then tap to open it.

Inside Settings, scroll down to “Factory reset.” This option is intentionally placed near the bottom to prevent accidental activation during daily use.

Tap “Factory reset.” The band will display a confirmation screen asking you to verify the action.

Tap the checkmark to confirm. The screen will briefly go black, and the Mi Band 4 will begin the reset process automatically.

Within a minute, the band will reboot and display the initial pairing screen, indicating that the hard reset is complete.

What You’ll See After the Reset

Once restarted, the Mi Band 4 behaves exactly like a brand-new device. The screen prompts you to pair with the Mi Fit or Xiaomi Wear app, and no previous settings, notifications, or activity history remain on the band.

The AMOLED display, compact capsule shape, and soft TPU strap feel unchanged on the wrist. However, all software-level customization, including watch faces, alarms, goals, and notification mirroring, has been erased.

This is normal and expected. The reset restores the tracker’s firmware to a clean state without altering hardware performance, battery health, or sensor accuracy.

When a Hard Reset Is the Right Choice

A hard reset is appropriate when the Mi Band 4 refuses to sync despite repeated attempts, remains frozen on a screen, or shows persistent touch lag that doesn’t improve after a restart. It’s also the correct step if you’re switching phones, changing Mi accounts, or handing the tracker to someone else.

For everyday glitches like a missed notification or a one-off sync delay, restarting the band is usually sufficient. A hard reset is best reserved for deeper software issues or when a complete break from the previous setup is required.

Common Mistakes to Avoid During Reset

Do not interrupt the reset once confirmed, even if the screen stays blank for several seconds. Interrupting power at this stage can cause boot issues that require app-based recovery.

Avoid resetting repeatedly in quick succession. If problems persist after a single hard reset and fresh pairing, the issue may lie with the phone’s Bluetooth stack, app permissions, or an outdated firmware version rather than the band itself.

Next Steps After a Successful Hard Reset

After the reset, re-pair the Mi Band 4 through the official app and allow it to complete firmware checks before changing settings. This ensures stable syncing, accurate health tracking, and the long battery life the Mi Band 4 is known for in daily wear and sleep tracking.

Taking a few extra minutes to let the band settle into its fresh setup often prevents the same issues from returning, keeping the experience smooth and low-maintenance going forward.

How to Factory Reset the Mi Band 4 Using the Mi Fit / Zepp Life App

If the band is still responsive enough to connect to your phone, using the official app is the most controlled and reliable way to perform a factory reset. This method handles the unpairing process cleanly, avoids Bluetooth conflicts, and prepares the Mi Band 4 for a fresh setup or transfer to a new user.

Whether you’re fixing stubborn sync problems or intentionally wiping the tracker before resale, the app-based reset is the approach Xiaomi designed for everyday users.

Before You Start: What You’ll Need

Make sure the Mi Band 4 has at least 20 percent battery remaining. A reset doesn’t consume much power, but a shutdown mid-process can cause pairing errors afterward.

Your phone should have Bluetooth enabled and the Mi Fit app, now known as Zepp Life, updated to the latest version available for your device. This applies to both Android and iOS.

Keep the band close to the phone during the entire process. The Mi Band 4 uses Bluetooth Low Energy, and distance or interference can interrupt the unpairing step.

Step-by-Step: Factory Reset Through the Mi Fit / Zepp Life App

Open the Mi Fit or Zepp Life app on your phone and sign in to the Mi account currently paired with the band. The reset option is account-specific, so logging into the correct profile matters.

From the home screen, tap Profile at the bottom of the app. This opens the device management area where all paired Xiaomi wearables are listed.

Select Mi Band 4 from the device list. You’ll see a dedicated settings page showing battery level, firmware version, and customization options like watch faces and notifications.

Scroll down to the bottom of this page and tap Unpair. The app may label this as “Unpair” rather than “Factory reset,” but this action triggers a full reset on the band itself.

Confirm the prompt when asked. The app will warn you that the device will be reset and removed from your account.

Once confirmed, the Mi Band 4 screen will briefly show a reset or unpairing message, then reboot. After restart, it returns to the initial pairing screen, just like it did out of the box.

What Happens During an App-Based Factory Reset

The Mi Band 4 erases all on-device data, including activity history stored locally, alarms, goals, custom watch faces, and notification settings. Any workouts or sleep data already synced to your Mi account remain safely stored in the cloud.

The band is also removed from your Mi account, which is critical if you plan to pair it with a different phone or give it to another user. Without unpairing, the next owner may encounter pairing locks or account conflicts.

Hardware behavior remains unchanged. The AMOLED display, vibration motor, heart rate sensor, and accelerometer all operate exactly as before, and real-world battery life stays the same once the band settles back into regular use.

If the Unpair Option Is Missing or Fails

If you don’t see the Mi Band 4 listed in the app, it may already be partially unpaired. In that case, restart Bluetooth on your phone, reopen the app, and check again under Profile.

If tapping Unpair does nothing or times out, keep the band on your wrist and awake, then try again after closing and reopening the app. Light movement helps keep the band from entering a low-power state during the process.

As a last resort, you can force a reset directly from the band’s settings menu. This is covered in the device-based hard reset section and is useful when app communication breaks down entirely.

After the Reset: Pairing Again or Passing It On

Once the band shows the pairing screen, you’re free to set it up again or leave it ready for a new owner. If re-pairing, start the process from the app rather than the band to ensure firmware checks and permissions are applied correctly.

During the first sync, allow the app a few minutes to restore basic settings and check for updates. This short waiting period helps stabilize notifications, improves sleep tracking accuracy, and preserves the Mi Band 4’s reputation for long, consistent battery life in daily wear.

At this point, the tracker is effectively in a clean, factory-fresh software state, ready to deliver the same lightweight comfort, reliable health tracking, and no-fuss usability that made it a standout budget fitness band in the first place.

After the Reset: Re-Pairing, Restoring Data, and Optimizing Battery & Sync Performance

With the Mi Band 4 now back in a clean software state, the next steps determine how smoothly it returns to daily use. This phase is less about fixing problems and more about preventing them from coming back.

Taking a few extra minutes during re-pairing and setup helps stabilize syncing, protects battery life, and ensures your historical fitness data shows up where it should.

Re-Pairing the Mi Band 4 the Right Way

Always begin re-pairing from the phone app, not from the band itself. Open the Mi Fit or Zepp Life app, sign into the same Mi account you previously used, and choose Add device under Profile.

Select Band, then keep the Mi Band 4 close to your phone with Bluetooth enabled. When the pairing request appears on the band’s AMOLED display, confirm it by tapping the checkmark.

If pairing seems slow, don’t cancel immediately. The Mi Band 4 uses a low-power Bluetooth connection, and the first handshake can take up to a minute, especially on older phones or after an app update.

Restoring Your Fitness Data and Settings

A hard reset clears the band’s internal storage, but it does not erase data already synced to your Mi account. Steps, sleep history, heart rate trends, and activity records reappear automatically once syncing completes.

After pairing, leave the app open for several minutes to allow background restoration to finish. You may notice past days repopulating gradually rather than all at once, which is normal behavior for the Mi Band 4.

Custom settings such as alarms, goals, notification permissions, and watch faces usually need to be reconfigured manually. This is expected and ensures only current, compatible settings are applied after the reset.

Handling Firmware Updates After a Reset

It’s common for the app to prompt a firmware update immediately after re-pairing. If this happens, place the band on your wrist or a flat surface, keep the phone nearby, and avoid switching apps during the update.

The Mi Band 4’s small size and lightweight construction mean its battery is optimized for efficiency, not fast recovery from interrupted updates. Letting the process complete in one session reduces the chance of freezes or partial installs.

Once updated, the band may restart on its own. This is normal and doesn’t affect restored data or pairing status.

Optimizing Battery Life Post-Reset

Battery life often improves after a reset, but only if settings are tuned thoughtfully. Start by reviewing heart rate monitoring frequency, sleep tracking options, and lift-to-wake sensitivity.

Frequent heart rate sampling and aggressive screen wake behavior increase power draw, even on the Mi Band 4’s efficient AMOLED panel. For most users, smart or interval-based heart rate tracking offers the best balance between insight and longevity.

Also check screen brightness and vibration intensity. The vibration motor is strong for such a slim band, but higher intensity settings noticeably reduce multi-day battery performance.

Improving Sync Stability and Notification Reliability

If syncing was an issue before the reset, this is the moment to fix it properly. Disable battery optimization for the Mi Fit or Zepp Life app in your phone’s system settings so it can run reliably in the background.

Make sure Bluetooth permissions, location access, and notification permissions are all enabled. On Android phones especially, missing one of these can cause delayed syncs or dropped notifications.

Open the app at least once every few days, even if everything seems fine. Regular check-ins help maintain a stable connection and prevent the band from falling into extended low-power sync states.

Preparing the Band for a New Owner

If you’re not re-pairing and instead passing the Mi Band 4 on, stop once the pairing screen appears. This confirms the device is no longer linked to your account and ready for a fresh setup.

Wipe the silicone strap with mild soap and water, and dry it fully before handing it over. The band’s compact dimensions and lightweight build make it comfortable for nearly any wrist, so cleanliness and presentation matter.

At this stage, the Mi Band 4 is effectively factory-fresh, with no personal data stored and no account locks remaining, ready to deliver the same dependable fitness tracking and long battery life it’s known for.

Troubleshooting Reset Problems: What to Do If the Mi Band 4 Won’t Respond or Reset

Even after following the standard restart or factory reset steps, some Mi Band 4 units refuse to cooperate. This usually happens when the band is frozen mid-process, stuck in a sync loop, or dealing with a critically low battery.

Before assuming the hardware has failed, work through the scenarios below. In most cases, patience and the right sequence bring the band back to life.

If the Screen Is Completely Frozen or Unresponsive

When the Mi Band 4 locks up, the touchscreen may stop registering swipes or taps entirely. Because there is no physical button, you cannot force a reboot the way you would on a phone.

Start by placing the band on its charger and leave it connected for at least 20–30 minutes, even if nothing appears on the screen. A deep battery drain can cause the AMOLED display to stay black while the internal system slowly recovers.

After charging, remove the band from the charger and wait another minute. If the screen lights up, try navigating to More > Settings > Factory Reset again from the band itself.

If the Band Won’t Reset from the On-Device Menu

Sometimes the reset option appears but fails to complete, looping back to the menu or freezing during confirmation. This is commonly tied to an unstable Bluetooth connection or incomplete sync with the phone.

Open the Mi Fit or Zepp Life app and ensure the band is actively connected. From the app, unpair the Mi Band 4 first, then place it back on the charger.

Once unpaired, the band should automatically prompt for pairing again. This effectively forces a soft reset state, even if the factory reset menu was previously unresponsive.

If the Mi Band 4 Is Stuck on the Pairing or QR Screen

A band stuck on the pairing screen usually means it was reset but not successfully re-linked to an account. This is not a failure state and does not mean the band is bricked.

Make sure Bluetooth is enabled and location permissions are allowed for the app, especially on Android. Then restart your phone and reopen the app before attempting to pair again.

If the pairing screen persists, leave the band idle for a few minutes. The Mi Band 4 sometimes takes time to exit pairing mode if multiple failed attempts occurred in quick succession.

If the Band Will Not Power On at All

A completely dead Mi Band 4 is often a charging issue rather than a reset problem. Check that the charging contacts on the back of the capsule are clean and aligned properly with the charger pins.

Try a different USB power source, avoiding low-power laptop ports if possible. The band’s slim, lightweight body relies on a small battery, and it may need a sustained charge to recover from full depletion.

If the screen remains blank after an hour on the charger, gently reseat the capsule in the charging cradle. Many “dead” bands revive once proper contact is restored.

When Restarting vs Hard Resetting Still Matters

If your goal is to fix minor issues like delayed notifications, missed steps, or occasional sync hiccups, a restart or unpair-repair cycle is usually enough. These problems are software-related and do not require wiping data.

A hard reset should be reserved for serious issues such as persistent freezes, pairing failures across multiple phones, or preparing the band for resale. Remember that a factory reset erases all stored activity data on the band itself, though synced data in your account remains intact.

Knowing which reset level to use helps avoid unnecessary setup steps and reduces wear on the band’s internal memory over time.

When to Consider Hardware Failure

True hardware failure on the Mi Band 4 is rare, but it can happen after years of daily wear. Signs include consistent failure to charge, visible screen damage, or random shutdowns even at high battery levels.

The band’s compact dimensions, sealed construction, and water resistance are excellent for everyday fitness use, but they also mean internal repairs are not practical. At this point, replacement is usually more cost-effective than troubleshooting.

Given the Mi Band 4’s strong value proposition and long-standing reliability, most reset-related issues are solvable without reaching this stage.

Final Takeaway: Stay Calm, Follow the Sequence

Reset problems on the Mi Band 4 are frustrating, but rarely fatal. Charging thoroughly, unpairing correctly, and understanding the difference between restarting and hard resetting resolve the vast majority of issues.

Take your time, follow the steps in order, and avoid rapid repeated attempts that can confuse the band’s software. With a little patience, the Mi Band 4 almost always returns to the dependable, comfortable, long-battery-life fitness tracker it’s known to be.

Whether you’re fixing a stubborn sync issue or preparing the band for a new owner, a methodical approach ensures a clean reset and a smooth fresh start.