BLZBNTBNA00000FB1

Updated: 1 year ago
Article ID: 28885
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Common Problems

We can't detect a microphone or headphones.
Error Code: BLZBNTBNA00000FB1

There is an issue preventing the Battle.net desktop app from using your audio device, typically caused by a problem with the device driver. Update your driver, or use a different device.

Tried everything here?

If the steps above did not resolve your problem, visit our Technical Support forum or contact us.