This is the headset mode. Whether the Apple mobile phone enters the headset mode is determined by the position of the brass shrapnel in the headset jack. When the headset is not inserted in the headset jack, the shrapnel in the jack is in the normal position, and the mobile phone also shows that the headset is not inserted.
when the earphone is inserted into the earphone jack, the earphone plug clings to the inner wall of the earphone jack, and the shrapnel in the jack is pushed to another position. When the shrapnel moves, it will send out a signal, and the mobile phone has been inserted into the earphone, so the Apple mobile phone will be prompted to enter the earphone mode, and the speaker and the earphone will make sound to the outside.
Solution to automatically change to headset mode
1. Restart the phone
First choose to restart the Apple phone to see if the Apple phone has switched back from headset mode. If it is still in earphone mode, the fault point is locked at the earphone jack position.
2. Foreign matter in the earphone jack
The mobile phone is often put in the pocket and bag, and the earphone jack is exposed. Check carefully whether there is any foreign matter in the earphone jack that presses the shrapnel in the earphone jack, causing the Apple mobile phone to enter the earphone mode.
3. Water gets wet
The elastic piece in the earphone jack is made of brass, which has been rusted and corroded in a humid environment for a long time or the mobile phone has been near the water, which causes the Apple mobile phone to enter the earphone mode. You can choose to gently wipe the inner wall and elastic piece of the earphone jack with a cotton swab.
4. The spring failure of the elastic piece
The most important factor for Apple's mobile phone to change into earphone mode is the spring failure of the elastic piece in the earphone jack. Due to frequent use of the earphone, the contact spring in the earphone jack is aging and fails, and the elastic piece automatically switches to earphone mode and cannot be restored to its original position.
you can use a toothpick or needle to wave the elastic piece in the earphone jack and force it to return to its original position.
Reference fee for the maintenance of the earphone jack of Apple mobile phone. If it is determined that the elastic piece in the earphone jack causes the Apple mobile phone to change into earphone mode, and the problem cannot be solved by using toothpicks, cotton swabs or needles, it can only be sent to the maintenance station.