1. Make sure the device you are trying to connect supports NFC.
2. The NFC chip's position is located around the Soundcore logo on the right earcup so ensure you're tapping the phone on that area.
3. Upgrade the firmware of both your device and Life Q35 to make sure you're using the latest version.
4. When Life Q35 turns on, make sure there is a flashing blue light which turns off after you pair your phone via NFC.