RPi3 Set LC

Required Tools

You can use Nano or Vim, here I use nano to edit locale

Step

1. Use sudo nano /etc/default/locale to edit locale file
   

2. Put following content into locale

    LANG=en_US.UTF-8
    LANGUAGE=en_US.UTF-8
    LC_ALL=en_US.UTF-8
    LC_TYPE=en_US.UTF-8
   

   

3. Save and exit
   Press Ctrl+O and then Ctrl+X