If the earbuds exhibit abnormal behavior, e.g. sound cutting in & out, very short range, static noise, touch control not responding, etc., please do the following.
Purchased before August, 2018 (Batch No. 17H1)
When charging, press and hold the power button for 5 seconds until the LED flashes RED and BLUE simultaneously once (like PINK); then it will power off automatically.
Purchased in / after August, 2018 (Batch No. 18B1)
- From its OFF state, press & hold on RIGHT earbud for 5s until the LED flashes RED & BLUE alternately.
- Double click and the LED will light on RED & BLUE simultaneously (looks PINK) for about 2s. After a successful reset it will automatically enter pairing mode.
After reset successfuly, please follow below to connect again:
- Delect / forget any information about TWS109 on the Bluetooth list.
- Then try to connect your phone again.