No sound from one side of the earphones

one_side_sound_none

If no sound is heard from one side of the earphones, restoring the settings of the earphones to the initial state may solve the problem.
Follow the steps below to check whether there is any abnormality with the sound output.

Restoring settings to the initial state

First of all, go to the Bluetooth settings of the device to be connected and delete the information of this unit that is registered on it.

Remove the earphones once if they are inserted into the charging case.

To restore the factory settings, follow the steps below to initialize the settings of both the L and R earphones.

  1. Charge the charging case

    2. charging_2_No-PC_charge_A20T + Charge_2_A20T

    5V TYPE

    Connect the USB charging cable to the charging case and follow the steps below while charging is in progress.

Start by restoring the settings of the L earphone to the factory default.

  1. Insert the L earphone into the charging case

    2. charging_1_L_A20T

    After a few seconds, the indicator on the L earphone and charging case will light up.

    charging_2_L_A20T

    Click here if the indicators do not light up or start flashing ＞＞

  2. Touch and hold the touch sensor area on the L side of the earphones for about 15 seconds to initialize

    3. Initializing_L_A20T + Initializing_L_A20T

    Touch sensor area

    While your finger is in contact with the touch sensor, avoid blocking the indicator with your finger.

    Release your finger after the indicator on the L side blinks twice.

    If the earphone wobbles and the indicator turns off while touching for 15 seconds, start over from step 2.

    If the indicator does not flash, start over from step 2.

  3. Remove the L earphone from the charging case

    4. take_out_L_A20T

Next, restore the settings of the R earphone to the factory default.

  1. Insert the R earphone into the charging case

    2. charging_1_R_A20T

  2. Touch and hold the touch sensor area on the R side of the earphones for about 15 seconds to initialize

    3. Initializing_R_A20T + Initializing_R_A20T

    Touch sensor area

    While your finger is in contact with the touch sensor, avoid blocking the indicator with your finger.

    Release your finger after the indicator on the R side blinks twice.

    If the earphone wobbles and the indicator turns off while touching for 15 seconds, go back to step 5, and start over from step 6.

    If the indicator does not flash, start over from step 5.

  3. Insert the L earphone into the charging case

    4. charging_1_2_L_A20T

  4. Remove both earphones at the same time

    5. take_out_A20T

    The indicator on both earphones lights up and the power turns on.

    Wait for a short while for both indicators to flash quickly. The earphones are now ready for device pairing.

    After taking out the earphones, move the L and R earphones close to the device to pair with.

Connecting to a Device

    Turn on the BLUETOOTH connection setting of the device and select “JVC HA-A7T2”
    connecting_smp_1
    connecting_smp_2
    connecting_smp_3 + Device List JVC Nav

    JVC HA-A7T2

    blue_flash_A20T

    The earphones are connected to the device if the indicators on both sides of the earphones are flashing every 5 seconds.

Apps and Volume Control on the Connected Device

  1. Open an app and play

    2. app_01
    app_02

  2. Adjust the volume

    3. volume_smp_1

Select the state after checking

Thank you for using Troubleshooting Guide.

There seems to be a problem with the product.
If you require more assistance, please contact your local JVC customer support.

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