Share your experience!
Problème oreillette toujours branché même si il rien de branché , du coup je peut appeler qu'en haut parleur ? Comment faire ?
Headset problem still plugged even if there is nothing plugged in, suddenly I can call that speakerphone? How to do ?
-GT
Hi @Yass42, sorry to hear about this. 
I have translated your question to English as this is an International forum!
Do I understand correctly that even when you remove the headset from the device, it still acts as like it is connected to the device? Have you made sure that there is no dirt in the 3.5 mm port on your device?
If there is nothing blocking the port, try resetting the Smart Connect application in your device. You can do so if you go to Settings > Apps > Smart Connect > Storage > Clear data > OK > restart your device.
Let me know how it goes!
Désolé 🙏 mais mon anglais es nul ! Mais ça ne marche pas, je n'es pas d'application de connections intelligente
Sorry, but my english is bad! But it does not work, I'm not applying smart connections
GT
Hi again and sorry to hear that there has been no change!
If you want you can use a translation service, such as Google Translate to translate from French to English! 
Since it still does not work, try restarting your device in safe mode so we can make sure that no downloaded application isn't the cause of this behaviour as they will be temporarily disabled in this mode.
Should there be no change even in safe mode, try performing a software repair using Xperia Companion. This will delete all data stored on the internal storage, so make sure that you create a backup using Xperia Companion before you start with the repair.
Keep me posted!