https://forums.windowscentral.com/threads/problems-after-upgrading-to-windows-10-mobile-on-limua-640xl.418064/
Problems after upgrading to Windows 10 mobile on Limua 640XL | Windows Central Forum
I upgraded my Lumia 640xl with Upgrade adviser app. After upgrading it, did hard reset and after installing all apps again I again did a Soft reset. I...