If you have a tile that has been previously activated, there are a few steps you can take to reset it. First, check to see if the tile is still inactivated. If it is, you can remove the activation key and reinstall the tile. If the tile is not inactivated, follow these steps:

  1. Open your device’s settings and select “reset.”
  2. Enter youractivation key into the “reset” field and click on " Reset."
  3. Your device will start resetting and will eventually ask you for your new activation key. Enter it into the “reset” field and click on " Reset."