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Blinks amber and white

Bose Blinks amber and white: error light on QC Earbuds II

Verified with sources3 sourcesReviewed Oct 18, 2026
Technician coming? See the 2 steps they must show you
Black Astrum ET300 true wireless earbuds with their charging case on a white background
Gjordan3CC BY-SA 4.0Image source

Risk level

Medium

Proceed carefully and stop if the check is unclear.

Urgency

Medium

Quick answer

On Bose QuietComfort Earbuds II, the earbuds status light or the charging case light blinks amber and white. Bose describes it as an error or critically low battery. Let the parts reach room temperature, resync them and run the web updater over USB.

Safety first

Stop and check this first

  • If a part swells, gets very hot or leaks, stop using and charging it and go to Bose service. If the battery leaks, keep the liquid off skin and eyes and seek medical advice, as the Bose guide says.
  • The Bose guide says the earbuds should only be adjusted or repaired by qualified service personnel, so do not open the earbuds or the case to look for the cause.

Safe checks you can perform

  • Identify which light is blinking amber and white
  • Wait for room temperature before testing again
  • Resync the earbuds with the charging case
  • Charge the case with another cable and wall charger
  • Run the Bose web updater from a computer

Leave these tasks to a qualified professional

  • Do not attempt this professional task: Run the Bose web updater over USB and check whether the error clears
  • Do not attempt this professional task: Ask Bose for a repair or replacement if the light does not change

What a technician must be able to justify

Technician visit

These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.

These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.

  1. Run the Bose web updater over USB and check whether the error clears

    What they doWith the case connected to a computer by USB, the technician opens btu.bose.com, lets the updater detect the earbuds, installs the update if one exists and looks at the status light again.

    They must show youthe updater screen with its result and the light state before and after.

    In writingwhether an update was pending and whether the light stopped blinking amber and white.

  2. Ask Bose for a repair or replacement if the light does not change

    What they doIf the light state stays the same after the updater, the technician opens a repair or replacement request with Bose from the support article, without opening the case or the earbuds.

    They must show youwhich of the two lights blinks amber and white and the temperature, resync and updater steps already tried.

    In writingwhich unit is being handled (case or earbuds) and the reference of the request opened with Bose.

Before accepting a part or repair

Nothing has been shown yet. Do not accept a part swap based on the code alone.

Follow these steps

Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.

  1. Identify which light is blinking amber and white

    No special tools

    Who:
    you, with the case open and the technician watching.
    How:
    look at the earbuds status light on the inside surface of the case and at the front light of the case. When you open the lid or insert the earbuds it blinks white for about 5 seconds until the battery shows; note which of the two lights shows amber and white.
    Result that matters:
    learn whether Bose treats it as an earbud error or as a critical battery or hardware error on the case.
    If the inside light blinks amber and white:
    Bose calls it an error and asks for customer service, so move on to temperature.
    If only the front light of the case shows amber and white:
    charge the case before going further.
    Evidence to keep:
    short video of each light with the case open and with the lid closed.

    Evidence: Understanding LED indicator status lights and information | Bose QuietComfort Earbuds II · Owner's Guide | QuietComfort Earbuds II

  2. Wait for room temperature before testing again

    No special tools

    Who:
    you, with the earbuds and case away from sun, car or cold.
    How:
    leave both parts to rest until they reach room temperature. Before charging, the Bose guide wants them between 46 and 102 °F (8 and 39 °C); then open the lid again and watch the light.
    Result that matters:
    rule out that the battery temperature protection is what the error shows.
    If after cooling down or warming up the light shows normal charging:
    there was no fault.
    If amber and white returns at room temperature:
    go on to the resync.
    Evidence to keep:
    time you let the parts rest and the light state when you reopen the lid.

    Evidence: Bose QuietComfort Earbuds II | Battery LED status indicator is flashing red and white · Owner's Guide | QuietComfort Earbuds II

  3. Resync the earbuds with the charging case

    No special tools

    Who:
    you, next to the case with your phone at hand.
    How:
    turn off Bluetooth on every device within 30 ft (about 9 m) of the earbuds, put both earbuds in the case for 5 seconds, then take them out of the case.
    Result that matters:
    check whether the earbuds and the case talk to each other normally again.
    If the earbuds play audio and the case light shows its usual charge state:
    resync worked.
    If the amber and white pattern is unchanged:
    charge the case and use the updater.
    Evidence to keep:
    state of both lights right after taking the earbuds out.

    Evidence: Bose QuietComfort Earbuds II | Battery LED status indicator is flashing red and white

  4. Charge the case with another cable and wall charger

    No special tools

    Who:
    you, with a USB-A wall charger and the USB-C cable.
    How:
    plug the cable into the USB-C port on the bottom of the case and secure both ends; the front light should glow solid amber while charging. If it does not charge, try another cable and charger, and keep the lid closed while it charges.
    Result that matters:
    separate a merely low case battery from a real hardware error.
    If the front light turns solid amber and then white:
    it was a low battery.
    If with a different cable and charger it still blinks amber and white:
    use the web updater.
    Evidence to keep:
    cable and charger used and the colour of the front light after a few minutes plugged in.

    Evidence: Understanding LED indicator status lights and information | Bose QuietComfort Earbuds II · Owner's Guide | QuietComfort Earbuds II

  5. Run the Bose web updater from a computer

    No special tools

    Who:
    you, with a computer and a USB cable, next to the technician.
    How:
    with the earbuds inside and the lid closed, connect the case to the computer by USB, go to btu.bose.com and follow the on-screen steps. The app checks the error and clears it by itself; if it asks to continue click OK, and if a warning appears click ACCEPT & PROCEED.
    Result that matters:
    install pending updates and see whether the error clears.
    If the light changes and no longer blinks amber and white:
    error cleared.
    If the light state does not change:
    Bose says the product needs service.
    Evidence to keep:
    updater screen with its result and the light state afterwards.

    Evidence: Bose QuietComfort Earbuds II | Battery LED status indicator is flashing red and white · Owner's Guide | QuietComfort Earbuds II

Still not solved

If the error persists, stop here. See what the technician must do and show you.

Where this code applies

A code is meaningful only inside the right product and version context.

Primary scope

System
Phones and tablets
Brand
Bose
Product type
Wireless earbuds and headphones

Known code variants

  • Amber and white blinking status light
  • Battery LED status indicator is flashing red and white
  • Blinks amber and white
  • Error, contact Bose customer service
  • Luz de estado ámbar y blanca en los QuietComfort Earbuds II
  • Parpadea en ámbar y blanco

What it means

According to the Bose support article on status lights and the QuietComfort Earbuds II owner's guide, amber and white blinking on the light inside the case is an error that calls for Bose customer service. On the front light of the case it means a critically low battery or a hardware error. Other models may differ, and this pattern alone never proves a part is faulty.

Warnings and stop conditions

  • Highsource verified

    If a part swells, gets very hot or leaks, stop using and charging it and go to Bose service. If the battery leaks, keep the liquid off skin and eyes and seek medical advice, as the Bose guide says.

    Evidence: Owner's Guide | QuietComfort Earbuds II

  • Mediumsource verified

    The Bose guide says the earbuds should only be adjusted or repaired by qualified service personnel, so do not open the earbuds or the case to look for the cause.

    Evidence: Owner's Guide | QuietComfort Earbuds II

Symptoms and causes

Probable causes · in order

  • Earbud or case temperature outside the allowed rangeCommon

    Bose says that if the product sat in extreme heat or cold and the battery temperature is outside its operating range, you should wait for room temperature and try again.

    Evidence: Bose QuietComfort Earbuds II | Battery LED status indicator is flashing red and white · Owner's Guide | QuietComfort Earbuds II

  • Earbuds and case no longer communicating with each otherPossible

    The article suggests a resync: switch off Bluetooth on nearby devices, leave the earbuds in the case for 5 seconds, then remove them so both can talk to each other again.

    Evidence: Bose QuietComfort Earbuds II | Battery LED status indicator is flashing red and white

  • Charging case battery critically lowPossible

    On the front case light Bose ties the same amber and white pattern to a critically low battery, so it asks you to charge the case now before treating it as a hardware error.

    Evidence: Understanding LED indicator status lights and information | Bose QuietComfort Earbuds II · Owner's Guide | QuietComfort Earbuds II

  • Stored error that the web updater can clearPossible

    When the product is connected to a computer by USB, the Bose updater checks the error and clears it automatically; if the light state does not change, Bose says the product needs service.

    Evidence: Bose QuietComfort Earbuds II | Battery LED status indicator is flashing red and white · Owner's Guide | QuietComfort Earbuds II

  • Hardware error in the charging caseLess common

    Bose lists amber and white on the front light as a possible hardware error and tells you to replace the case, which is not a part that gets opened at home.

    Evidence: Understanding LED indicator status lights and information | Bose QuietComfort Earbuds II

Virtual technician

Does Blinks amber and white still appear after these checks?

Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.

Sources and technical references

Sources: Understanding LED indicator status lights and information | Bose QuietComfort Earbuds II · Bose QuietComfort Earbuds II | Battery LED status indicator is flashing red and white · Owner's Guide | QuietComfort Earbuds IIreviewed 2026-10-18 · verified

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