The sensor and the headphone itself do not work

Mar 30,2023
Mar 30,2023 at 6:22 pm
Mar 30,2023 at 6:22 pm

At one point, the sensor stopped working, it only works when I hold it, there is sound when I hold it, if I release it, the earpiece immediately turns off. I've already reset it to factory settings many times, nothing helps. There were no mechanical damages.

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EarFun CS Team

Staff Member

Apr 14,2023 at 9:21 am
Apr 14,2023 at 9:21 am

Hi friend, 


Thanks for choosing EarFun. Sorry for the inconvenience caused.

Do both earbuds have the same issue?


As for the issue you encountered, we kindly suggest you try the below steps.


1. Please use the charging cable to charge the case for 2 hours.


2. A. Use a toothpick to gently clean the metal contacts on the earbuds and charging case to avoid dust or wax stains;

B. Clean the contacts of the earbuds and the charging case with an alcohol cotton swab; (especially the groove of the earbud contacts);

C. Rub them with clean napkins, press the earbuds with forces to eliminate loose contact with the case and charge them for around 1.5 hours to try it out. (Ensure the case has enough battery life simultaneously).


3. Reboot your device and then reset and reconnect the earbuds per the updated steps:


Step 1. Delete the old connection from the Bluetooth device.

Step 2. Place both earbuds into the charging case.

Step 3. Keep the charging case open, then touch and hold the button on each earbud at the same time for at least 10s until they flash alternately in blue and white then earbuds have been reset successfully.

Step 4. Search and reconnect “EarFun Free Pro 2".


If the above methods still could not solve your issues, please email our customer service team via or submit the warranty ticket on our official website: EarFun provides an 18-month warranty for every product. Your satisfaction is always greatly important to us.




EarFun Customer Service Team

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