Step\/Method 1
1. First of all, please check whether the indicator light of the Bluetooth headset is blinking. If the Bluetooth headset battery is not enough, then please use the charger to charge the Bluetooth headset
Step\/Method 2
2. Restore factory Settings
Sometimes it may be because there is too much junk on the phone, first select \"backup and Settings\" and then click \"Restore factory Settings\".
Step\/Method 3
3. It may also be caused by oil accumulation and oxidation where the earphone metal is in contact. If there are stains, use a cotton swab with alcohol to wipe the contact position clean.