Update your S1 Pro to the latest firmware. For units purchased in early 2018, with serial number Z code 8162 or less, a USB cable must be used for the initial update. Otherwise, S1 Pro can be updated over a Bluetooth connection using the Bose Connect app running version 6.1.0 or later.
To update the firmware in a ControlSpace device, open the Hardware Manager and click on the Firmware Update tab. For any devices that are running older firmware, the Status column on the right side of the Hardware Manager will have a red background and the checkbox next to the Device Name field will be automatically checked.
It is very important that the device remain powered on during the entire firmware update process. A loss of power to the device during the firmware update process could result in a device that is unable to boot
After the first reboot, if the device is an EX series DSP, the AEC firmware may need to be updated. This process will happen automatically and will require an additional automatic update. As with the main firmware update, this entire process may take several minutes.
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