I am unable to use by wired c type earphone continuously while switching apps. It needs to be plugged out and plugged in each & every time for the audio to hear through the earphones, otherwise the audio will be through the speakers. This is the case for audio files in the device as well. Once you play an audio, pause and go out of the app, come back and play it again, it plays through the speakers. Only when you plug out and plug in again it will help to get back to the wired earphones.
Also, make sure you are using compatible and official cords for these connections.
The last thing to try is Safe mode, to ensure a third-party app is not interfering with the functionality. Safe mode guide is here: https://www.samsung.com/us/support/answer/ANS00062983/ If it behaves in Safe mode, then uninstall apps until functionality of the headphones is restored.
If the troubleshooting is not helpful, the phone will need to be evaluated by a certified technician. For service in the U.S., you can take the phone to a local U.S. walk-in service location https://www.ubreakifix.com/samsung or to ship the phone in for service, please reach out to us via one of the following options: 1. Facebook Messenger: http://m.me/samsungsupport 2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513- 3. Private Message: https://bit.ly/3hzZfw8 If the PM link is not working for you, you can click on my name and send me a private message directly from my profile.
Same here, it always defaults to phone speakers at every opportunity. Even in the middle of a youtube video, after an advertisement it will switch away from my wired buds. Very annoying.
