The way to restore the factory settings of TWS series Bluetooth headphones: put the headphones into the charging box, keep the charging box open, press and hold the function key 15 seconds on the charging box until the orange light flashes quickly, then release the button to restore the factory settings of the headphones.

The method of restoring the factory settings of vivo wireless sports headphones: press and hold the volume+key and volume-key of headphones for about 3 seconds at the same time to restore the factory settings;

The method of restoring the factory settings of iQOO wireless sports headphones and vivo wireless audio-visual headphones: press and hold the volume key and multifunction key 15 seconds until the indicator light goes out and restore the factory settings;

The general method to restore the factory settings of other types of Bluetooth headsets is to press and hold the headset multifunction key for about 5- 10 seconds after the headset is turned off, and the factory settings can be restored after seeing the indicator light flashing for three times.

Tips: Because different brands and models of Bluetooth headsets may have differences in structural design, please refer to the operating instructions of Bluetooth headsets for specific operations.

If you still have more doubts, you can enter vivo official website-My-Online Customer Service-Enter labor and consult online customer service feedback.