Bose QUIETCOMFORT BL3L Manual - Page 41
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UPDATE THE EARBUDS
The earbuds and charging case begin updating automatically when connected to the
Bose Music app and an update is available. Follow the app instructions.
TIP: You can also update the earbuds and charging case using the Bose updater
website. On your computer, visit: btu.Bose.com and follow the
on-screen instructions.
VIEW THE EARBUD DATE CODE
Remove the eartip from the earbud (see page 20).
The date code is located on the earbud nozzle.
VIEW THE CHARGING CASE SERIAL NUMBER
Remove the right earbud from the charging case.
The charging case serial number is located on the left side of the right earbud well.
TIP: The charging case serial number is also located on the carton outer label.
CA RE A N D M A IN T E N AN CE
Date code
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