Sync Haylou GT1 Pro with phone: full instruction from connection to error fixing

Introduction: Why you need proper synchronization

Xiaomi’s Haylou GT1 Pro wireless headphones have become a popular choice thanks to a combination of high-quality sound, compact design and affordable price. However, even with such devices, users often face problems when first connecting or re-synchronizing. Incorrect pairing can lead to communication interruptions, audio distortion or even complete inoperability of the headset.

In this article, we will not only discuss the standard procedure for connecting to smartphones on Android and iOS, but also the nuances that the manufacturer does not say, for example, why headphones can not be determined by the system if they were previously connected to another device via Bluetooth 5.2, or how to reset the settings without losing functionality, especially focusing on the typical errors that 80% of users make when they first set up.

Preparing headphones for synchronization

Before you start connecting, make sure your Haylou GT1 Pro is ready to pair, and many people miss this stage, which causes problems later.

• 🔋 Charging headphones: Make sure that the charge level of each earphone is not lower than 30%. When the charge is low, the synchronization process can be interrupted. Check the indicators: red LED charging, blue full charge.
• 📦 Case extraction: Take both earbuds out of the charge case. They must automatically turn on (white light flashes). If this does not happen, press and hold the touchpad on each earbud for 3 seconds.
• 🔄 Reset previous settings: If the headphones have already been connected to another device, reset. To do this, quickly tap the left-earphone touchpad three times (the indicator should flash red and blue at the same time).

Also check what is on your smartphone:

• 📱 Bluetooth enabled (in settings or via the Quick Access Panel).
• 🔍 Disabled other wireless devices (columns, fitness bracelets), which can cause interference.
• 📲 Updated operating system (especially relevant for Android 12)+ iOS 15+, Where Bluetooth protocols have changed).

Standard Android Connection

Syncing with Android devices is usually smoother than with iPhones, thanks to the more flexible Bluetooth settings.

1. Open Settings → Connected devices → Connection settings → Bluetooth.
2. Activate Bluetooth if it's turned off. Wait for the system to find the available devices.
3. In the list of found devices select Haylou_GT1_Pro (The name may have a postfix like L or R — that's OK).
4. Confirm the pairing on the phone and, if necessary, on headphones (a single tap on the touch panel).

After successful connection, check:

• 🎧 Stereo mode: sound must come from both headphones. If only one sounds, take both out of your ears and insert it again.
• 📊 Connection quality: Bluetooth settings should specify the headphone name next to the headphones A2DP (for music, and HFP (call-in).

Headphones appear in the list of connected devices |

Sound is played in stereo mode |

The headphones are blue (do not blink) |

Bluetooth settings have a protocol A2DP-->

If the headphones are connected but the sound is interrupted or distorted, try:

1. Turn off energy saving mode in Bluetooth settings.
2. Turn on Absolute Volume (in Android Developer: Settings → System → Developer → Absolute Volume Bluetooth).
3. Reboot the phone and reconnect the headphones.

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If the headphones only connect one at a time, try connecting them first: put them both in a case, close the lid for 10 seconds, then pull out. They should sync automatically (the indicators blink alternately).

Connection to iPhone (iOS)

With Apple devices, the pairing process is slightly different due to the Bluetooth protocol features in iOS. The main problem is that the Haylou GT1 Pro can be defined as an "uncertified" device, which leads to limitations in functionality (for example, the lack of a charge indicator).

1. Open Settings → Bluetooth.
2. Make sure the headphones are in search mode (blinking white indicator).
3. In the list of found devices select Haylou_GT1_Pro. Confirm the connection.
4. If a warning about “uncertified accessory” appears, click Connect anyway.

Features of working with the iPhone:

To reduce the latency of the sound when watching the video:

1. Close all background apps, especially instant messengers and social networks.
2. In the video player settings (e.g. YouTube), enable the audio sync option and manually select the latency (usually +150–200 ms).
3. Turn off Wi-Fi and use mobile internet (sometimes this reduces the lag).

Solving Typical Synchronization Problems

Even with the right connection, users are experiencing errors, and here are the most common ways to fix them:

1. Headphones are not defined by the phone

• 🔄 Reset: Put the headphones in the case, close the lid. Then pull out and hold the touchpads on both headphones for 10 seconds until the indicators start flashing red and blue.
• 📱 Bluetooth Reboot: Turn off Bluetooth on your phone, restart the device, then turn on Bluetooth again.
• 🚫 Device conflict: Remove all previously saved Haylou devices in Bluetooth settings and try to connect again.

2. The sound is only in one earpiece.

This is one of the most common problems that arises from:

• 🔊 Unsynchronized headphones: Put both earphones in the case, close the lid for 15 seconds, then pull out. They should automatically connect with each other (indicators blink alternately).
• 📵 Interference from other devices: Disable all other Bluetooth devices (smart watches, speakers) and reconnect the headphones.
• 🔧 Firmware failure: Update your headphone firmware through the official Haylou Fun app (available for Android).

3. Permanent communication breakdowns

If the connection is interrupted every 5-10 minutes:

• 📶 Bluetooth weak signal: Make sure there are no obstacles (walls, metal objects) between the phone and the headphones. Maximum distance is 10 meters.
• 🔋 Low charge: Charge below 20% can cause unstable operation.Put the headphones in the case for 10 minutes.
• 📲 Energy saving conflict: In Android settings, turn off battery optimization for Bluetooth (Settings) → Annexes → Three points. → Special access → Optimizing the battery).

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If the headphones are connected but immediately switched off, the problem is the phone’s firmware. Update the OS or roll back to the previous version (relevant to Android 13+).

⚠️ Note: Do not use Haylou headphones GT1 Pro with phones based on MediaTek Helio G80/G90 (For example, Redmi Note 9/10). These chipsets have a known Bluetooth problem 5.0, which may cause the sound to disappear from 1–2 moment-by-second 30 No solution, just a phone or headphone replacement.

Additional settings through the Haylou Fun app

The official Haylou Fun app (available only for Android) allows you to fine-tune your headphones, update your firmware, and even change your gestures, and you can download it from Google Play or the official website.

After installation:

1. Open the app and allow access to Bluetooth and notifications.
2. Click Add Device and select the Haylou GT1 Pro from the list.
3. Confirm the pairing on the headphones (one-time press on the touch panel).

The following functions are available in the annex:

To update the firmware:

1. Connect the headphones to the app.
2. Go to the Update section.
3. If a new version is available, click Update and wait until it is completed (the headphones will reboot).

⚠️ Warning: If the headphones are gone during the firmware update and the process is dead, don't panic. Put the headphones in the case, close the lid for 30 seconds, then try again. If the problem recurs, contact Haylou with the phone model and the app version.

Resetting headphones to factory settings

If none of these things work, you might need to reset completely, which will remove all the connections you've saved and bring the headphones back to the box-like state.

1. Put both headphones in the charging case and close the lid.
2. Pull them out and hold the touchpads on both headphones for 15 seconds until the indicators start flashing red and blue quickly.
3. Release the buttons. The headphones will reset (the indicators will go out, then light up in blue).
4. Now they can be re-connected, as in the first use.

After discharge:

• 🔄 The headphones will automatically connect with each other (you will hear a beep).
• 📱 When connected to the phone, they will appear as a new device.
• ⚙️ All user settings (gestures, equalizer) will reset.

If the headphones do not work after reset:

• Check if the moisture has not got into the connectors (especially if the indicators do not burn at all).
• Try connecting them to another phone to rule out a problem with your device.
• Contact the service center if the warranty is still valid (the period is 12 months from the date of purchase).

FAQ: Frequent questions about Haylou GT1 Pro