https://www.bose.ca/en_ca/support/products/portable_speakers_support/soundlink_air.html
https://worldwide.bose.com/updates/soundlink_air_2
- In the File Download window, click Run or Save.
- If Run, follow the prompts to perform the update.
- If Save, select a location for saving the file (Bose SoundLink Air Wi-Fi Setup Application.exe). Then start the application from your hard drive and follow the prompts to perform the update.
- Click the "Download Now" button below
- Open the downloaded dmg file, and then double-click the Bose SoundLink Air Wi-Fi Setup Application icon.
- Follow the instructions in the application to complete setup.
https://www.youtube.com/watch?v=8nDx2V-ncbs
Software updates sometimes become available to improve the performance of your system. To update your software, follow these steps:
On the remote, press and hold MUTE for ten seconds while watching the Wi-Fi indicator
If the Wi-Fi indicator starts quickly blinking green, release the MUTE button: a software update is necessary and the software will start downloading. The Wi-Fi® indicator continues blinking until the download is finished. While the software update is being installed, the Wi-Fi® indicator glows solid green for three seconds followed by a double blink. This pattern repeats until the installation is finished. At the end of the installation, the system emits a tone and automatically restarts. After restart, the system will automatically connect to your Wi-Fi® network again
Note: a software update can take a few minutes to install.
CAUTION: Do not remove power from the SoundLink® Air system while updating the system software.
Note: If the Wi-Fi® indicator starts blinking red, a system error has occurred. Contact Bose® Customer Service for assistance.