Synchronization of headphones Xiaomi Haylou GT1: instruction and problem solving

Why is it important to sync the Haylou GT1 correctly?

Xiaomi’s Haylou GT1 wireless headphones are a popular price-balanced model, but even they can give you a headache when you first connect. Synchronization errors result in one-way sound, permanent communication interruptions, or complete device failures, most often due to incorrect sequence, outdated firmware, or conflict with other Bluetooth devices.

In this article, we’ll look at all the synchronization options, from standard connectivity to manual resetting, and how to avoid the typical mistakes that 70% of users make when they first turn on. For example, many people don’t know that the Haylou GT1 automatically goes into pairing mode only when they first turn on or after they completely reset. If you skip that, the headphones may not appear on the list of available devices.

We'll focus on synchronization (forming a stereo pair), a separate process that is often confused with connecting to a phone, and if you only have one earphone after you connect to your phone, the problem is with internaural synchronization, not Bluetooth.

Preparation for synchronization: what to check before connecting

Before you start pairing, make sure your headphones and smartphone are ready for the process. Skipping these steps is the main cause of failure.

• 📱 Update your smartphone firmware: Outdated versions of Android (below 8.0) or iOS (below 12.0) may not support Haylou protocols GT1. Check for updates in Settings → System system → Update of the PO.
• 🔋 Headphone Charging: Charge level should be at least 30%. When the charge is low, the headphones can turn off during synchronization. Check the indicator: red is discharged, blue is charged.
• 🎧 Reset previous connections: If the headphones were already paired with another device, you need to "forget" them in the Bluetooth settings. On Android: Settings → Connected devices → Haylou_GT1 → Forget it.
• 📶 Disable other Bluetooth devices: Headphones, speakers or fitness bracelets in range can cause interference. Temporary shutdown will help avoid conflicts.

If you connect the Haylou GT1 to multiple devices (like a phone and laptop), remember: they support multipoint (connecting to two gadgets at once), but only after you have set up correctly. Trying to connect to the second device before fully synchronizing with the first one can reset the settings.

Standard Android Connection: Step-by-step instructions

The process of pairing with Android devices usually goes smoothly, but there are nuances that are not written in the official instructions.

1. Turn on your headphones: Press the button on any headphone for 3 seconds until the red-blue light flashes. This means that the headphones have gone into search mode.
2. Activate Bluetooth on your phone: Go to Settings → Connections → Bluetooth and turn on the feature.
3. Find it. Haylou_GT1 In the list: The title can be displayed as Haylou_GT1_L or Haylou_GT1_R — It's okay.Push it on.
4. Confirm pairing: Some phones (e.g. Xiaomi or Samsung) may have a request for code confirmation. Standard code is 0000 or 1234.

Once successfully connected, the headphone indicator should stop flashing and burning with even blue light. If this did not happen, then the headphones did not sync with each other, in which case forced resynchronization will help (more about this in the next section).

⚠️ Warning: If you only have one headphone after you've connected, don't rush to reset your settings. First, check the sound balance in your smartphone settings: Settings → Sound. → Bluetooth balance. Sometimes the volume distribution between the left and right channel gets lost.

Connection to iPhone (iOS): features and life hacks

With the Haylou GT1 on the iPhone, there are more problems than on Android, due to Apple's restrictions on third-party Bluetooth devices.

1. Reset your iPhone network settings (if the headphones aren’t): Go to Settings → Main → Reset → Reset Network settings. This will delete all stored Bluetooth devices, but often helps with the Haylou GT1’s “invisibility.”
2. Use Forget Device Mode: If the headphones were previously connected but are no longer working, remove them from the list and re-pair them.
3. Turn off the Auto Switch function (for iOS) 14+): It can interfere with a stable connection. Find it in Settings. → Bluetooth → (i) near Haylou_GT1 → Connect to this iPhone.

On the iPhone Haylou GT1 can be displayed as two separate devices (Haylou_GT1_L and Haylou_GT1_R). It's okay, but you only need to plug in one thing, and the other one automatically plugs in, and if you plug both in manually, you get conflict, and the sound is intermittent.

How to synchronize headphones with each other (forming a stereo pair)

If you're only on one headphone when you're connected to your phone, the problem is not Bluetooth, it's inter-ear synchronization. Haylou GT1 consists of master and slave headphones. If the communication is severed, the stereo won't work. Here's how to restore the pair:

1. Turn off both headphones: Place them in the case for 10 seconds, then pull out.
2. Press the buttons on both headphones simultaneously for 10 seconds until the indicators start flashing red and blue quickly.
3. Wait for the synchronization: In 5-10 seconds, the blinking will slow down, and the headphones will sound. They're now connected.
4. Connect to the phone: Repeat the standard pairing (see section above).

If you're doing this, you're still only hearing one earpiece, and you're probably going to have one of the headphones that's out of order or need to flash it, and then you're going to need to go to the service center.

Resetting Haylou GT1 settings to factory

If all the previous methods didn't work, you'll have a complete reset, which will bring the headphones back to the factory settings and remove all the connections you saved.

1. Place both headphones in the case and close the lid for 5 seconds.
2. Pull them out and press the buttons on both headphones simultaneously for 15 seconds.
3. The indicators will first light up red, then go out, and after 2 seconds, flash red and blue, which means that the reset was successful.
4. The headphones are now ready for a new connection.

⚠️ Attention: After Haylou reset GT1 You may lose touch with Haylou Fun's proprietary app (if you used it), and you'll have to re-attach them in the app to access advanced settings like equalizer or firmware updates.

Resetting is also useful if the headphones have started to shut down or do not respond to buttons, often due to a conflict of saved Bluetooth profiles.

Advanced settings through Haylou Fun app

The official Haylou Fun app (available for Android and iOS) allows you to not only update your firmware, but also fine-tune your headphones.

• 🎛 Equalizer: Select preset profiles (Bases, Rock, Classic) or create your own.
• 🔊 Touch button settings: Reassign actions (e.g., double tapping to trigger voice assistant).
• 📲 Firmware update: Fix bugs or add new features (e.g. support) LC3-codec).
• 🔋 Charge monitoring: View the battery level of each earphone and case in real time.

To connect headphones to the application:

1. Install Haylou Fun and open it.
2. Click Add Device and select Haylou GT1.
3. Follow the instructions on the screen (you will need to confirm the connection via Bluetooth).

If the app doesn't see the headphones, make sure that:

• Headphones are connected to the phone via Bluetooth.
• The app version is updated (check out Google Play or App Store).
• The phone allows access to the location (required for Bluetooth to work on Android 12+).

💡

Haylou Fun is a firmware update, and without it, headphones won’t be able to get new versions of the software, even if they’re connected to your phone via Bluetooth.

Frequent problems and their solutions

Even after successful synchronization, users experience typical failures, and here are the most common ways to fix them:

If the headphones start to turn on on themselves in the case, this is a sign of sticking buttons or getting moisture.Wash the contacts on the headphones and in the case with a cotton swab dipped in alcohol, and leave to dry for 12 hours.

FAQ: Answers to popular questions