There is no sound in the receiver and speaker of the old man-machine, but what is the reason for the sound?

There is something wrong with the system. Go brush it.

If there is no sound on the receiver, it may be that you pressed one of the up, down, left and right direction keys during the call and adjusted the volume to 0. The solution is: dial 1 12 to test the mobile phone, and then press up and down or left and right (different models have different ways, some are up and down, some are left and right). When the volume adjustment screen appears on the screen, continue to press the direction key to adjust the sound of the receiver to the maximum.

Check whether the phone is in silent mode.

Press the button on the standby screen to adjust the volume of the ringtone (this operation can also exit the vibration only mode).

Play the song to test whether there is sound, and if there is sound. It means that the speaker is not damaged. 4. Back up mobile phone data (phone book, SMS, multimedia files, etc.). ), restore the factory settings (Settings-Reset-Restore Factory Settings), and eliminate the causes of system errors. If the fault still exists, it is recommended that you take the three-guarantee certificate of your mobile phone and send it to the nearest Samsung service center for inspection and maintenance.

Inspection method;

Check whether the metal piece in the earphone jack is misplaced and dial it back with a ballpoint pen.

Check whether the player equipment and mobile phone speakers are mute, and adjust the volume appropriately.

Go to phone settings-mode change-change the headset mode to external sound mode.

Put a toothpick through the speaker hole. If it still doesn't work, restart the phone or restore the factory settings.

If it doesn't work, it can only be repaired, which proves that the speaker is broken.