I just bought a Galaxy A42 5G and it has an interesting but disturbing issue. When using the phone in normal calls, meaning using the ´phone´ app. The microphone doesn´t work unless the Bluetooth on the device is turned ON. I have tried rebooting, searching for updates and so, and nothing solve the issue. Bluetooth must be On in order to use the microphone when using the phone app.
Is this a common issue? Is Samsung planning to update the app or release a fix??
It just seems so strange for the calling feature to be linked with Bluetooth. Have you previously connected a Bluetooth handsfree device/earphones? Also, have you tried backing up and performing a Factory reset?
I have the same issue accept my microphone is not working at all for some reason . Not even if the Bluetooth is on. My phone is 3 weeks old. How did you fixed your issue ?
Removing all bluetooth headphones helped for a bit, but not anymore. The latest solution was to keep the bluetooth enabled even if the headphones are not linked... It's a pain, I expect that the next upgrade takes care of it.