I have done this & tried safe mode but still no mike
On WhatsApp is says mike muted but I can not change this
On a normal voice call if I press speaker my voice can be heard.
The mute button here makes no difference either on or off there is no mike working
Thank you I have followed the safe mode but still same problem
If I do a reset does the backup cover all the contents on the phone
If you're going to do a hard reset it wipes everything on your phone, so it's better to back up all your data on the phone onto Samsung cloud or something. And if the problem persists @patmyhead I'd suggest having Samsung take a look at the phone for you.
I have contacted Samsung who are collecting phone for repairs
Thank you all for your help
You're welcome and you'll enjoy your phone in full working order again. ☺