A53 How to Set Traditional Mode

① Unplug the earphone for many times, and you can rotate at multiple angles.

② Try to change other standard headphones.

③ Restart the phone to see if it can be restored.

(4) Back up the data to restore the factory settings.

⑤ Handling by customer service center

Reason: When plugging and unplugging the earphone, excessive force and oblique insertion may easily lead to the desoldering of the earphone seat, the deformation of the elastic sheet, and the exposed hole of the squid earphone, all of which will be caused by water, iron filings and dust.