Sony SRS-HG10 Help Manual page 227

When software updating is completed, the UPDATE indicator lights off, and the speaker enters
BLUETOOTH/NETWORK mode automatically.
When turning on the speaker after updating, the UPDATE indicator flashes three times in orange.
*1
The checking is finished immediately. So, you cannot see the flashing indicator. Depending on the network environment, it may take time. In this
case, wait for about one minute.
Related Topic
Update method 2: Manual update via the Internet
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