Surface Recovery Image Download - Microsoft Support
Your Surface comes with Windows recovery info that you can use to refresh your Surface or reset it to its factory condition. Always try to do that first before downloading a recovery image. To learn more, see the links below.
Troubleshoot Surface Type Cover or Keyboard - Microsoft Support
First steps if your Surface Type Cover or Keyboard doesn't work. To try to resolve these issues, you can begin by following the steps below to get the latest updates, detach the Type cover or keyboard, force a restart, reattach the Type Cover or Keyboard , or confirm connectivity.
Troubleshooting calls in the Phone Link - Microsoft Support
If you're using a Bluetooth mouse or accessory and you are experiencing poor quality during a call, try temporarily disconnecting the accessory to see if your audio quality improves. If you're experiencing a bad echo, try using a wired headset to improve the experience. Troubleshooting steps for the calling feature of the Phone Link app.