TOZO Left Earbud Not Working? – (Instant Fix Guide)

tozo left earbud not working

Is only the TOZO left earbud not working? This is a widespread problem with TOZO earbuds!

When only the left earbud stops working, it is reasonable to suspect that there is a hardware problem with the unit.

However, there are tricks and workarounds this guide will uncover that can restore the functionality of the left earbud, of course, if the issue is not hardware-related.

If only the left TOZO earbud isn’t working, verify that the headset is charged and stabilize the mono/stereo output of the device.

If the problem lasts, update the headset’s firmware and re-establish the Bluetooth connection on your device by forgetting the TOZO earbuds.

Let’s find out what causes the malfunction first!

Why is Only One of My TOZO Earbuds Working?

only one of my tozo earbuds working

The first step to fixing issues with the earbuds is uncovering what can go wrong with the audio output.

There are multiple possible causes for the sudden balance loss in the audio, so comprehending the problem and knowing what could go wrong is essential for troubleshooting!

Here’s why only the left TOZO earbud has stopped working:

  • The audio balance settings are misconfigured (left or right).
  • Only the left TOZO earbud was unable to charge sufficiently.
  • The Bluetooth connection of the TOZO earbuds is not stable.
  • The TOZO earbuds are working on an outdated OS firmware.
  • There’s a hardware malfunction with your left TOZO earbud.

This could potentially impact the functionality of one of your TOZO earbuds and cause them to produce a non-balanced output.

So, keep reading to explore all troubleshooting suggestions!

TOZO Left Earbud Not Working – Quick & Easy Solutions

Tip: Follow our steps consecutively!

1. Re-Establish the Bluetooth Connection

re-establish the bluetooth connection

A disrupted Bluetooth connection could lead to issues with one of the TOZO earbuds, causing it to muffle or unpair from the mobile device.

So, it is recommended to re-establish the Bluetooth connection within your output device’s settings to restore the functionality of both TOZO earbuds.

Here’s how to reconnect the TOZO earbuds in easy steps:

  1. Open the “Settings” app on your mobile device.
  2. Tap on “Bluetooth” and find the TOZO connection.
  3. Tap the “Info” button and then tap “Disconnect.”
  4. Put the earbuds inside the case and close the lid.
  5. After 20-30 seconds, take the TOZO earbuds out.
  6. Tap TOZO’s connection in the settings to pair again.

How to Forget Bluetooth Connection On Mobile?

forget bluetooth connection on mobile

It is also recommended to re-add the TOZO earbuds’ connection from your device entirely by forgetting and re-adding the device.

This is possible by selecting the “Info” button next to the earbuds within the device’s Bluetooth connection and tapping the “Forget this Device” button.

You must keep them close to your output device.

Reminder: After forgetting the earbuds, you must complete the initial setup to re-add them as Bluetooth in your device’s settings. 

2. Adjust the Audio Balance Settings

The mono audio or stereo settings of your mobile device might be transferring the audio output of the TOZO entirely towards the left or the right earbud.

So, the next step is to adjust the audio settings to verify that the audio is balanced for both earbuds and they have the same output.

How to Adjust Audio Balance Settings On Android?

adjust audio balance settings on android
  1. Open the “Settings” app on the Android device.
  2. Scroll down and enter the “Accessibility” section.
  3. After that, find the “Audio Balance” slider option.
  4. Drag the slider to the middle to optimize “Balance.”
  5. Once you’re done configuring, exit the audio menu.

How to Adjust the Audio Balance Settings On iOS?

  1. Open the “Settings” app on your iPhone or iPad.
  2. Afterward, go to “Accessibility” → “Audio/Visual.”
  3. Locate the “Balance” section in the audio options.
  4. Drag the slider towards the middle to configure it.
  5. When ready, go back to exit the iOS audio options.

After you’ve adjusted the audio balance, pair the TOZO and test if the audio output is equal on both earbuds.

If any further audio balance adjustment is required to equalize the output, head back into the audio settings and drag the slider left or right until the output audio is balanced.

Info: By default, the mono audio setting on most mobiles is in the middle!

3. Charge the Battery of Your TOZO

charge the battery of your tozo

One of the TOZO earbuds may have ceased functioning due to an incomplete battery charge.

Low battery is the source of many problems with the TOZO earbuds, including muffled sound output, improper Bluetooth connection, and continuous audio defects with one or both earbuds.

So, place both earbuds inside the charging case and connect the charging cable to the port on the underside of the case.

Wait for at least 15-20 minutes for the earbuds to achieve optimal battery capacity before testing them again.

How to Resolve TOZO Charging Issues?

resolve tozo charging issues

You can resolve issues with charging the TOZO earbuds by inspecting the charging equipment and the charging port.

Here’s what to do:

  • Verify that the USB type-C charging connection is secure.
  • Attempt to charge the TOZO case in an alternative power source.
  • Replace the charging USB-C cable or install a different adapter.
  • Remove obstructions or dust accumulation in the charging ports.

In addition, multiple TOZO models are compatible with wireless charging.

If you have compatible earbuds and chargers, you can re-charge TOZO wire-free

4. Clean/Dry Your Left TOZO Earbud

Now that you’re confident that the left TOZO earbud is not left without charge, the next reason is clogged speakers (earwax). 

This frequently happens and can make your left TOZO earbud very quiet or not working, based on how much obstruction there is.

clean/dry your left tozo earbud

So, we recommend using a soft-bristled brush, a cotton swab or an ear stick to thoroughly clean the left earpiece and verify that the speaker is not obstructed.

In addition, verify that the bottom tip of the earbud and the charging pins in the case are also clean and free of dust and debris.

TOZO Earbuds Water Exposure?

If you’ve accidentally submerged your left TOZO earbud in the washing machine or spilled any liquids or other fluids, you must leave your left earbud to dry.

A full day under direct sunlight will do, but if your left TOZO earbud is not working, it may be lethally damaged by the water.

Note: While cleaning, inspect the charging contacts for any defects.

5. Test TOZO on a Different Device

test tozo on a different device

If your TOZO earbuds do not cause the problem, the audio loss on the left unit will disappear when you use a secondary output device.

So, the next step is to erase the current Bluetooth connection of TOZO and complete the wireless setup on an alternative mobile or desktop unit.

How to Connect TOZO to a Mobile Device?

  1. Open your mobile device’s “Settings” app and go to “Bluetooth.”
  2. Next, verify that the feature is turned on by pressing the slider.
  3. Open the charging case of the TOZO earbuds close to the unit.
  4. On the “Discoverable Devices” list, look for the TOZO earbuds.
  5. Tap the TOZO section once to connect wirelessly to the earbuds.

How to Connect TOZO to a Desktop Device?

Alert: If pairing TOZO to a computer, ensure you’ve connected an external Bluetooth adapter!

  1. Open the Windows or macOS settings on your desktop device.
  2. Navigate to the “Bluetooth” settings and tap “Add New Device.”
  3. Choose “Bluetooth” and open the TOZO case close to the device.
  4. Once the connection of the earbuds appears, select it to connect.
  5. Select the TOZO earbuds as the “default output device” and test.

This will help with refreshing the Bluetooth connectivity.

Info: If the connection between your device and TOZO fails, verify that the earbuds are in closer range and re-insert them from the case. 

6. Factory Reset the TOZO Earbuds

factory reset the tozo earbuds

Addressing issues with the TOZO earbuds is also possible by conducting a factory reset on the product.

The factory reset process will overcome the functionality hurdle by restoring TOZO’s settings to their default values and erasing all Bluetooth connections and potential OS errors!

Follow these steps to perform a factory reset on the TOZO earbuds:

  1. Open the TOZO charging case and check the power.
  2. Take both of the earbuds out from the charging case.
  3. Tap the touch buttons on the earbuds simultaneously.
  4. At the fifth tap, the LED lights of the earbuds will flash.
  5. Stop interacting with TOZO while the LED is still flashing.
Alert: Remember not to interact with the earbuds once the factory reset begins, since opening the charging case or taking the earbuds out will stop the process.

7. Fasten the Earbud’s Internal Wires

fasten the earbud’s internal wires

A one-sided malfunction of the TOZO earbuds might also indicate damaged integrity of the earphone’s internal wires.

Hopefully, there’s an efficient procedure to split open the earbuds’ halves and thoroughly examine the internal wires to detect damage to the supplying points.

What Do I Need for Dissasembling TOZO Earbud?

  • A thin dummy knife.
  • A flat-head screwdriver
  • Some pieces of duct tape.
  • Soldering iron (Advanced)

Note: Accessing the TOZO earbud’s hardware will result in a warranty void of the product!

inspect internal wires of damaged tozo earbud

Here’s how to inspect the internal wires of the damaged TOZO earbud:

  1. Take out the defective left earbud from the TOZO charging case.
  2. Position the earbud on a soft surface and locate the plastic gap.
  3. Gently push the dummy knife’s blade into the TOZO’s plastic gap.
  4. Use the flat screwdriver to split open the earbud’s halves gently.
  5. After that, carefully detach the plastic halves from one another.
  6. Locate the A/C terminal wire of the earbud, typically red.
  7. Use a small piece of duct tape to secure the wire with the terminal.
  8. Advanced: Use a soldering iron to solder the A/C wire’s romex.
Alert: Work on the earbud cautiously to avoid damaging the hardware integrity!

Quick Recap

Hence, when the TOZO left earbud not working, first adjust the “Audio Balance” on the output device and re-charge the earbuds to maximum capacity.

If the issue is still there, update the firmware of the TOZO earbuds and conduct a factory reset for a fresh start.

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