Application Guide

Disconnect all other Bluetooth devices such as wearable devices or smart watches from your

Android/iOS device before starting the update.

Before you upgrade

Once updated, the firmware cannot be reverted to an earlier version.

 WH-H900N

For Android devices, the update process will take approximately 25 minutes to complete. (The

file size is about 3.3 MB)

For iOS devices, the update process will take approximately 35 minutes to complete. (The file

size is about 3.3 MB)

 WF-SP700N

For Android devices, the update process will take approximately 60 minutes to complete. (The

file size is about 1.4 MB)

For iOS devices, make sure to turn off the "Google Assistant" function prior to the update. The

update process will take approximately 60 minutes to complete. (The file size is about 1.4 MB)

 WI-SP600N

For Android devices, the update process will take approximately 20 minutes to complete. (The

file size is about 2.1 MB)

For iOS devices, the update process will take approximately 15 minutes to complete. (The file

size is about 2.1 MB)

 WI-C600N

For Android devices, the update process will take approximately 20 minutes to complete. (The

file size is about 2.0 MB (1.7 MB for CN version))

For iOS devices, the update process will take approximately 15 minutes to complete. (The file

size is about 2.0 MB (1.7 MB for CN version))

Depending on the radio wave environment and your Android/iOS device, it may take longer to