Resetting Firmware Loop on Amazfit Bip U Pro

Introduction

When a wearable device repeatedly flashes its recovery screen or refuses to boot normally, the user is often left frustrated and stuck.
The Amazfit Bip U Pro is no exception. Some owners have reported that their device goes into a firmware loop – it restarts, shows the download screen, waits, restarts again, and so on.
Understanding the cause of this loop, knowing how to prepare your watch and phone, and following a precise reset procedure are essential for getting your Bip U Pro back to life.
This article walks you through every step you need to take to exit the firmware loop, troubleshoot common pitfalls, and keep your device running smoothly afterwards.

What Is a Firmware Loop?

A firmware loop is a failure mode where the watch’s internal operating system can not complete its start‑up routine.
Instead of loading the main interface, the watch reboots over and over, often showing the “Downloading firmware” screen.
The loop can be triggered by:

• A corrupted or incomplete firmware update
• A hardware fault that interrupts the update process
• Software bugs that prevent the watch from finishing its checks
• Improper pairing with the phone app during an update

Once the loop starts, the watch behaves as if it were still downloading a new OS version, even though no update is actually in progress.

Common Causes of the Firmware Loop on the Bip U Pro

• Interrupted OTA (over‑the‑air) update – Power loss or disconnection during the download.
• Stale firmware in the app – The Amazfit app may be trying to install a version that is already on the device.
• Corrupted firmware cache – Residual data from a failed previous update.
• Compatibility issues – A recent Android or iOS update that changes Bluetooth behavior.
• Battery health problems – Low voltage can cause the watch to restart mid‑firmware verification.

Preparing for the Reset

Before diving into a reset, gather the following:

1. A stable Wi‑Fi or mobile data connection – The watch will need to re‑download firmware from Amazfit servers.
2. Your phone with the latest Amazfit app installed – Make sure the app is updated to the newest version.
3. A fully charged phone battery – Avoid interruptions.
4. A spare USB‑C cable – Use the original cable or a certified replacement.
5. A calm environment – Firmware operations can take several minutes.

Open the Amazfit app, check that your Bip U Pro is listed and connected. If the app shows an error, proceed to the next section to force a fresh pairing.

Step‑by‑Step Reset Procedure

1. Force a Soft Reset on the Watch

Locate the small button on the side of the watch.
Press and hold the button for 10 seconds until the screen flashes a white “Reboot” icon.
Release the button.
If the watch goes into the firmware loop again, proceed to the hard reset step.

2. Initiate a Hard Reset Through the Amazfit App

1. Open the Settings tab in the app.
2. Tap Device Management and select your Bip U Pro.
3. Scroll to Reset and confirm the reset request.
4. The app will prompt the watch to erase all data and restart.

During this process, the watch may show the “Downloading firmware” screen repeatedly. Let it run until it reaches the main interface.
If the loop continues, move to the manual factory reset method below.

3. Manual Factory Reset (If App Is Unresponsive)

1. Disconnect the watch from the phone.
2. Press and hold the button for 30 seconds until the screen turns black and stays that way.
3. While still holding, release the button and immediately press it again, holding for another 30 seconds.
4. The watch will flash its logo three times, indicating a successful reset.

After the reset, the watch will boot to the initial setup screen. Pair it again with the Amazfit app as if it were a new device.

4. Re‑install the Latest Firmware

If a corrupted firmware version caused the loop, the app may automatically download the latest one.
If not, manually trigger a firmware update:

1. In the app, go to Device > Firmware.
2. Select Update and confirm.
3. Keep the watch near the phone and avoid moving it to prevent interruptions.

Wait for the watch to show a progress bar reaching 100 %.
Once the update completes, the watch should lock onto its home screen without looping.

5. Verify Battery Health

After restoring the watch, check the battery level in the app.
If the battery percentage drops below 10 % during a normal use case, consider replacing the battery or contacting Amazfit support.

Troubleshooting Common Pitfalls

If none of the above fixes resolve the issue, contact Amazfit customer support. Provide them with the watch’s serial number, the steps you’ve taken, and any error messages you observed.

Preventing Future Firmware Loops

• Keep the app and watch updated – Install updates promptly to avoid mismatched firmware versions.
• Avoid power interruptions – Keep the watch fully charged or connected to a charger while updating.
• Maintain a stable connection – When the watch prompts a download, stay within Wi‑Fi range and avoid switching networks.
• Use official accessories – Non‑certified cables can cause communication errors during firmware transfer.
• Check for device compatibility – Verify that your phone’s OS version is supported by the Amazfit app.

Final Thoughts

A firmware loop can feel like a dead end, but with a methodical approach you can bring the Amazfit Bip U Pro back to full functionality.
The key lies in understanding why the loop occurs, preparing a clean reset, and ensuring the firmware is re‑downloaded without interruption.
Once you have a fresh installation, enjoy the full range of health‑tracking features, always keeping the watch and app up to date.

By following these guidelines, you’ll save time, avoid unnecessary support calls, and keep your fitness companion reliable for months to come.