No sound from one side of the earphones

one_side_sound_none

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

Insert the earphones into the charging case. Check that they are charged, and then remove from the charging case.

  1. Insert the earphones into the charging case

    2. Power_OFF_NP1T

    If the charging case is charging, unplug the USB charging cable.

  2. Charge the charging case

    3. Using the supplied charging cable, connect the charging case and a commercially available USB conversion adapter.

    Insert the USB AC adapter into the AC outlet to start charging.

    charging_2_No-PC_charge_NP1T + Charge_2_NP1T

    5V TYPE

    Indicators

  3. Insert the earphones into the charging case. Check that charging has started, and then remove from the charging case.

    4. Case_button_LR_NP1T

Select the state after checking

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Initializing the earphones and re-establishing the connection may help to solve the problem.

Follow the steps below to check whether there is any abnormality with the sound output.

Initializing

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.

Charge the charging case beforehand.

Follow the steps below to initialize the settings of both L and R earphones.

  1. Remove the L earphone from the charging case

    2. Case_button_L_NP1T

    Make sure that the Bluetooth device is not connected (the indicator flashes twice every 5 seconds, or flashes quickly repeatedly).

  2. Press the button 3 times (for the third time, keep pressing until the indicator lights up)

    3. Release your finger after the indicator lights up.

    Initializing_L_NP1T + Initializing_L_NP1T

    Button

    Release your finger after the indicator lights up.

    Press and hold

    The indicator lights up for 5 seconds.

  3. Press the button twice quickly while the indicator is lighting up

    4. Initializing_L_2_NP1T

    The indicator will flash and then go out, and the power will be turned off.

    If the button is not pressed twice in time, the earphones will return to the condition in step 1. Repeat again from step 2.

  4. Insert the L earphone into the charging case

    5. Initializing_2_NP1T

  5. Remove the R earphone from the charging case

    6. Initializing_3_NP1T

    Make sure that the Bluetooth device is not connected (the indicator flashes twice every 5 seconds, or flashes quickly repeatedly).

  6. Press the button 3 times (for the third time, keep pressing until the indicator lights up)

    7. Release your finger after the indicator lights up.

    Initializing_R_NP1T + Initializing_R_NP1T

    Button

    Release your finger after the indicator lights up.

    Press and hold

    The indicator lights up for 5 seconds.

  7. Press the button twice quickly while the indicator is lighting up

    8. Initializing_R_2_NP1T

    The indicator will flash and then go out, and the power will be turned off.

    If the button is not pressed twice in time, the earphones will return to step 5. Repeat again from step 6.

  8. Insert the R earphone into the charging case

    9. Initializing_4_NP1T

  9. Remove the earphones from the charging case and place them so that the L and R earphones are placed next to each other

    10. connecting_LR_1_NP1T

    The L and R indicators light up and the power turns on.

    Wait for a short while for the indicator on one earphone to flash quickly and the indicator on the other earphone to flash twice in every 5 seconds. The earphones are now ready for device pairing.

    connecting_LR_2_NP1T

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

Connecting to a Device

If a pop-up display appears on your Android device, perform connection by following the instructions on the display.

In other cases, try the steps below.

    Turn on the BLUETOOTH connection setting of the device and select this unit
    connecting_smp_1
    connecting_smp_2
    connecting_smp_3 + Device List JVC Nav

    JVC HA-NP1T

    blue_flash_NP1T

    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

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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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