This TechJunkie article on how to factory reset your Galaxy S8 or Galaxy S8 Plus will show you how. Then you’ll need to restore your phone’s data from backup. It is important that you back up first, however, as a reset is going to erase all the data on your phone. This will resolve any possible software issue. The last resort is to backup your phone’s data and applications and then do a factory reset. Backup your Phone then do a Factory Reset
This TechJunkie article on how to clear the cache on a Galaxy S8 And Galaxy S8 Plus will walk you through the steps on how to clear your phone’s cache. Sometimes if the cache becomes damaged or corrupted, this can cause issues with the operation of the phone, including your microphone. The cache on your phone is a storage area devoted to the operating system or individual apps. Your phone will now be booted up in “Safe Mode.” Clear Your Phone’s Cache You should see the words “Safe Mode” at the bottom of the display.Press and hold the Volume Down button immediately after that until your phone finishes restarting.Release the button when “Samsung Galaxy S8” or “Samsung Galaxy S8 Plus” shows on the screen.Make sure to try just the reboot method above without uninstalling any apps, before you try to determine if an app is the cause of the problem. If your microphone works, then that app was likely the cause. If it does go away, then you can uninstall the app and resolve the issue.Īn alternative way to test whether it’s a particular app causing the problem is to temporarily uninstall the app, restart your phone, then test your microphone. If it doesn’t go away in Safe Mode, then the problem isn’t the new app.