JVC HAA7TB Gumy Truly Wireless Earbuds Headphones Installation Guide

: June 14, 2024
: JVC

Table of Contents

Troubleshooting
Documents / Resources

HAA7TB Gumy Truly Wireless
Earbuds Headphones
Installation Guide

Troubleshooting

Main Unit

Symptom	Action
**** Unable to pair	Place both earphones into the charging case, wait for

the indicator light to turn off or on, followed by taking out both earphones again at the same time.
When pairing, make sure the BLUETOOTH device is within 1 m of the System.
Operate the BLUETOOTH device to connect.
Turn on the BLUETOOTH device and enable pairing.
Delete the pairing information on the BLUETOOTH device list and perform pairing again.
Perform operations after setting the BLUETOOTH function of the connected device to OFF and then to ON again.
Perform operations after turning off the connected device and on again.
Refer to the steps to establish a connection.
Connecting (Power On)Check whether the System is connected to another device.
Turn off the BLUETOOTH settings of other devices and enable pairing with the desired device.
The L earphone flashes quickly or twice repeatedly and connection cannot be
established| Turn on the BLUETOOTH device, enable its Bluetooth function and select the System from the BLUETOOTH device list.
Sound is heard only from the left or right earphone| Place both earphones into the charging case, wait for the indicator light to turn off or on, followed by taking out both earphones again at the same time to connect. After taking out the earphones, move the L and R earphones close to each other.
Insert the ear pieces more securely.
Reset the setting to factory default and connect again.
Restoring the settings to the initial state
The R earphone flashes twice

repeatedly and no audio sound is output

| Place both earphones into the charging case, wait for the indicator light to turn off or on, followed by taking out both earphones again at the same time to connect. After taking out the earphones, move the L and R earphones close to each other.
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After connecting to the System, the
BLUETOOTH device connected does not function immediately| ****

Depending on the BLUETOOTH device connected, even when the L indicator lights up after connecting to the System, the BLUETOOTH device may not function immediately due to the time lag in the connection
operation. Wait for a few seconds and try operating again.

The volume is low or the sound is unpleasant| Increase the volume on the System or the BLUETOOTH device connected.
Insert the ear pieces more securely.
Change the size of the ear pieces.       Audio operation
Unable to skip back to the previous track| During playback, press and hold the L button for about 1 second and release your finger when a beep is heard. The previous track or beginning of the current track will be played after the playback of the current track has ended.
Unable to skip to the next track| During playback, press and hold the R button for about 1 second and release your finger when a beep is heard. The next track will be played after the playback of the current track has ended.
The earphones fall off the ears easily| Change the size of the ear pieces.       Audio operation
The sound is distorted| Adjust the volume on the BLUETOOTH device connected so that there is no distortion, and then adjust the volume on the System.
Charge the main unit. Charging
Ring tone is soft and cannot be heard| The ring tone may not be heard from the earphone if the silent mode of the BLUETOOTH device is turned on. Turn off the silent mode of the BLUETOOTH device or adjust the volume of the ring tone.
The sound is choppy and there is noise| Use the connected device in a position or orientation that allows for the most stable communication. The sound tends to be interrupted when the System is covered with the hands.
Try reducing the number of apps running on the BLUETOOTH device connected.
Charge the main unit. Charging
The System does| Re-charge the system and switch power on.
not work correctly|
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Unable to turn on the power| Charge the charging case first. Charging the charging case Charge the main unit. Charging
Unable to charge and turn off the power (earphones)| Remove both earphones from the charging case and place them back in again.
Make sure that the earphones are fully inserted into the charging case.
Use a cotton swab to remove any dirt from the contacts of the earphones and charging case.Charge the charging case first.      Charging the charging case
Unable to charge (charging case)| Make sure that the USB cable is plugged in all the way.
Please charge within the charging temperature range (5°C (41 °F) to 35 °C (95 °F)).
The earphones are turned on during charging| When the charging case runs out of battery, the earphones are turned on. In this case, turn the earphones off manually.      Powering off using the earphones Charge the charging case. Charging the charging case
Unsure what the flashing and lighting up of the indicators indicate| Refer to      Indicator status list.
Music or voice calls cannot be heard| Delete the pairing information on the BLUETOOTH device list. Perform pairing after turning off the connected device and on again (or after rebooting).

If no sound is heard from the earphones or the earphones cannot be connected to your BLUETOOTH device after performing the operations suggested in the Troubleshooting section, restoring the settings of earphones to the initial state may solve the problem. Restoring the settings to the initial state

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Documents / Resources

| JVC HAA7TB Gumy Truly Wireless Earbuds Headphones [pdf] Installation Guide
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