Connecting Haylou Solar Watches to Smartphone: Full Instruction with Problem Solutions

Why Connecting Haylou Solar Is So Important

Xiaomi’s Haylou Solar smartwatch has gained popularity thanks to a combination of affordable prices, stylish design and rich functionality, from health monitoring to music management. However, many users face difficulties already at the first synchronization stage with the phone. Connection errors, lack of notifications or sudden communication breaks are often due not to a defect in the device, but to missed steps in setting up.

This article will help avoid the typical mistakes, from choosing the right app (not Mi Fit!) to the subtleties of setting the resolution on Android 13+ and iOS 17. We will analyze not only the basic connection, but also hidden features like automatic reconnection after rebooting your phone, and also give a checklist to diagnose problems. If you have already tried to sync your clock and got a Connection failed or Device not found error, here you will find solutions.

What application is needed for Haylou Solar: a comparison of options

The main mistake of beginners is trying to connect Haylou Solar via Mi Fit or Zepp Life. These applications are not compatible with this model! The manufacturer recommends using only Haylou Fun - proprietary software with an optimized interface for the Solar series. The application is available for Android 6.0+ and iOS 11.0+, but there are nuances:

• 📱 Android: Requires permission for the exact location (even if you are not using the same location) GPS not used in hours) and access to Notices to ensure that alerts are properly operated.
• 🍎 iOS: iPhone app works more stable, but data synchronization takes 20-30% longer due to Apple restrictions.
• 🔄 Alternative: The Amazfit app (from the same manufacturer) theoretically supports some features, but without guaranteeing full compatibility.

Important: If you have previously installed Mi Fit, remove it before installing Haylou Fun - service conflict can block the connection.

⚠️ Attention: Do not install APK from third-party sources (for example, APKMirror) – in 2023, there were cases of distribution of modified versions with advertising software.

How to connect Haylou Solar to your phone

The synchronization process takes no more than 5 minutes if you follow the exact sequence.

Download and install Haylou Fun|Turn on Bluetooth on your phone|Charge the clock to minimum. 30%|Place the clock in the distance <10 cellphone-->

Now, let's get to the connection itself:

1. Activate the clock: Press and hold the physical button on the right side of the Haylou Solar case for 3 seconds until the Haylou logo appears on the screen.This signals the transition to device search mode.
2. Launch the app: Open Haylou Fun and click Add Device (+ icon in the upper right corner). From the list, select Haylou Solar model (LS05).
3. Bluetooth pairing: The phone will have a system window requesting connection, confirm it. If the window does not appear, check if the antivirus (for example, Avast or 360 Security) blocks access to Bluetooth.
4. Data Synchronization: After a successful connection, the app will suggest updating the watch firmware (if a new version is available).Discard the update at this stage - complete the initial setup first, otherwise the watch may freeze during the flashing stage.

If you fail to connect in step 3, try:

• 🔄 Reboot the phone’s Bluetooth module (disable/enable in settings).
• 📱 Remove the watch from the list of associated devices in the phone settings and try again.
• 🔋 Remove and re-insert the battery in the watch (if the model supports replacement).

💡

On Android 12+, before connecting, disable the Bluetooth Auto Switch function in the settings – it can interrupt the connection to the clock in favor of other devices (for example, headphones).

Setting up notifications and calls: why they don't come

One of the main reasons for buying a smartwatch is the ability to receive notifications from your phone, but after connecting, many users find that alerts from WhatsApp, Telegram or calls simply do not appear on Haylou Solar.

For Android:

1. Go to Settings → Applications → Haylou Fun → Permissions.
2. Activate the points: 📲 Notifications (allow access to ALL notifications). 📍 Exact location (required for the correct operation of the pedometer). 🔋 Auto-run (to make the application work in the background).

Haylou Fun

Device Profile → Notifications

The process is more complicated for iOS due to Apple’s limitations:

1. Open your iPhone → Bluetooth settings and find Haylou Solar in the device list.
2. Click on the “i” icon next to the watch name and activate Share System Notifications.
3. In the Haylou Fun app, go to Settings → Notifications and enable the option to Sync with iOS.

⚠️ Note: On iPhone, notifications from WhatsApp and Viber may not arrive if the option Show Preview is disabled in the settings of these applications.

Connection problems and their solutions: errors and codes

Even with the right setup, users encounter errors like Disconnected, No response from device or endless device search, and consider the most common error codes and how to fix them:

If none of the methods worked, reset the clock settings:

1. On the watch, go to Settings → System → Reset (or hold the 10 seconds button until vibration).
2. After resetting, repeat the connection procedure from scratch.
3. Calibrate sensors: For pedometer accuracy, enter your height, weight, and step length in the user profile.

Important: for measurement SpO₂ (Oxygen level) the watch should be tightly attached to the wrist:

• 🧼 Wipe the lower part of the watch with an alcohol napkin (sweat or dirt interfere with reading).
• 🔋 Make sure the battery is above 20% – when the charge is low, the sensors turn off.

💡

For more accurate pulse measurement during exercise, turn on the Sports Monitoring mode in the watch settings. It increases the frequency of reading data from the sensor from 1 time every 5 minutes to 1 time every 10 seconds.

How to Update Haylou Solar Firmware Without Errors

Updating the firmware adds new features (like gesture support or extra dials), but if approached incorrectly, it can cause the clock to freeze or reset. Follow this algorithm to avoid problems:

Preparation:

• 🔋 Charge the watch to 100% (the upgrade will not start when the charge is below 50%).
• 📶 Connect your phone to stable Wi-Fi (mobile internet updates may interrupt).
• ⚠️ Close all background apps on your phone (especially instant messengers and games).

Updating process:

1. Open Haylou Fun and go to Device Profile → Software Update.
2. If a new version is available, click Update and wait for the file to load (weight ~10-15 MB).
3. Once loaded, the watch will reboot 2 times - that's OK! Don't interrupt the process.
4. Upon completion, check the firmware version in the Settings of the Watch → About the device.

⚠️ Warning: If the update has been stuck in Transferring data... more than 10 minutes: Reboot your phone. Hold the button on the clock for 15 seconds for forced reboot. Retry the update. If the problem repeats – download the firmware manually from the official site and update through the Local File in the application.

FAQ: Answers to Frequent Questions about Haylou Solar