2021 BMW Head Unit Resets with Android 11 Bluetooth

Symptoms

Owners of affected 2021 BMW vehicles may experience their head unit (HU-H3 MGU) resetting unexpectedly. This issue typically occurs when using various applications, such as YouTube or Spotify, on a mobile phone connected via Bluetooth.

Diagnosis and Trigger Conditions

This specific issue is linked to Bluetooth connections with Samsung mobile phones running the Android 11 operating system. Devices like the Samsung Galaxy S20 and Galaxy S21 have been identified as contributing to these head unit resets.

The manufacturer communication, identified as a TSB, highlights that the problem arises when these specific phone models are paired and actively used with the vehicle's infotainment system. If you own a 2021 BMW 330i manufacturer_communication regarding this issue, it's important to note the specific conditions.

Affected Component

The core component experiencing the resets is the HU-H3 MGU, which is the vehicle's main head unit. This unit manages the infotainment system and its various functions, including Bluetooth connectivity.

Owner Action

If you are experiencing head unit resets in your 2021 BMW and use a Samsung phone with Android 11, it is recommended to contact your authorized BMW dealer. The 2021 BMW 330i manufacturer_communication serves to inform technicians about this known issue.

Dealers will be aware of this manufacturer communication and can provide further diagnosis or potential software updates to address the problem. Be prepared to describe the exact conditions under which the resets occur, including the specific phone model and apps you were using.

Source: NHTSA ID 10200482