Chosen Solution
My A21s just started losing the sound from headphones completely, they are recognised as connected but audio is still playing through the speakers, Any help?
Hi, It seems that there is a problem with the headphone jack in the phone.There is an internal contact inthe headphone jack that operates when a set of headphones is plugged in, to indicate to the audio controller to switch the sound from the speaker to the headphone jack. Try inserting the headphone plug and gently wiggle it about as you are inserting and removing it to see if this releases the contact and restores the sound to the headphones. If still no good then the phone will have to be opened and the headphone jack be inspected. First to make sure that it is not loose from the systemboard and if it is OK then it may need to be replaced as it cannot be repaired. Here’s a video that shows how to open the phone so that the headphone jack can be accessed. The phone seems to be a fairly recently released model so it may still be covered by the manufacturer’s warranty. Maybe you should try and get it fixed under warranty as opening the phone will most probably void the warranty.
Basis bottomline . First make sure you have a good connection, before waisting time to look for other possible problems. Make sure that the jack is properly and fully inserted into the slot on the phone.