The side port of the mobile phone generally refers to the charging port or the earphone port. If you want to open the charging port, you need to plug the charging cable into the port at the bottom of the phone, and then plug the other end into the USB port on the charger or computer. If you want to use a headphone port, you need to insert the headphone plug into the headphone jack on the side of the phone. Special attention should be paid to the quality and safety when using any external plug-in device to avoid any unnecessary damage to the phone.
You need a thimble, you put it in, you push it out