Huawei GAR-UL00, Faq

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1.46 Does my phone support Bluetooth aptX?
No.
1.47 Why can't I clearly hear the voice from the Bluetooth
car kit or Bluetooth headset?

Check whether the Wi-Fi switch of your phone is turned on. If so, turn it off.

Connect the Bluetooth car kit or Bluetooth headset to another phone and check whether
the similar problem occurs.

Check whether noise is caused during the call because human body blocks signals or the
surrounding environment has interferences. If so, stay away from the interferences.
1.48 What is BLE?
The Bluetooth BLE function is a new technology developed based on the low power
consumption feature of the Bluetooth. Generally, the BLE accessory manufacturers release
related apps that are used together with the BLE accessories, for example, BLE sports wrist
band, sports watch, balance scale, pedometer, and smart wrist strap.
1.49 How can I connect my phone to a smart BLE device?
Generally, the BLE accessory manufacturers release related apps that are used together with
the BLE accessories. You can download and install the corresponding app. Search the smart
BLE device using the app and confirm the connection. Then, you can synchronize the data
between the smart BLE device and the phone.
1.50 Why do Bluetooth calls have the intermittent, noise,
and echo problems?

The Bluetooth may have a compatibility problem. You can connect the Bluetooth device
to another phone to check whether such a problem occurs.

Check whether Wi-Fi of the phone is enabled. Check whether the voice conditions can
be improved after you disable Wi-Fi.

Update your phone to the latest firmware version

Search the reference solution on the Internet.

If the problem persists, provide the information such as headset model, application
scenario, and software version to Huawei after-sales service hotline.