The Bluetooth APIs and the associated Bluetooth stacks are different between the WICED SDK (Combo Chips) and the WICED Smart SDK (BCM207XS series). They are not compatible and cannot be mixed.
Then I get worried as to why the Bluetooth part is removed from the documentation from v3.3?
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Current Wiced SDK supports the BLE with a host MCU paired with a BCM207XS series device.
WicedSmart supports the stand alone BCM207XS series devices. With Wiced Smart SDK, user application runs on the same MCU along with the Broadcom's BCM207XS firmware and stack.
With Wiced SDK, user application runs on the host MCU and the Broadcom's BCM207XS firmware runs on the BCM207XS series device. The serial communication is used to communicate host MCU with the BCM207XS series device.
You are welcome to open both SDKs on the same eclipse IDE: