I can't hear the other party's voice through the Bluetooth car sound system after the upgrade to Android 11

IMPORTANT: This article applies only to specific products and/or operating systems. Check Applicable Products and Categories for details.

You may experience an issue that prevents you from hearing the other party’s voice when your Xperia® phone is connected through the Bluetooth® car sound system or headphones during a call after installing Android™ 11.

Switch the phone’s sound output, and follow these instructions for a temporary resolution:

1. Select the Sound checkbox on the screen of your Xperia phone during a call.
2. Select Speaker on the sound switching screen that appears at the bottom of the screen.
3. Select the Sound checkbox on the phone screen again.
4. Select the car sound system or headphones connected via Bluetooth on the sound switching screen that appears at the bottom of the screen.

We are currently investigating this issue. Please bookmark this page and check back periodically for a status update regarding any improvement measures.