Update Logo
To update your logo on the site, navigate to the Content section and then open up Responsive Design.
Open up Site Layouts and Default. Click on the template that has the star next to it. That is the template you are currently using. TIP: If you are in a Custom design, you will click on the Custom template instead.
Scroll until you find the Full Row Masthead and click on the arrow. Click Manage Settings.
Double click Image Logo.
Click in the box. Click the blue arrow that says Upload. Drag and drop and choose Add Files. Find the file and Start Upload. Select the new logo and click Insert.
You will also want to update the default logo for the site. This ensures that anywhere within the site that auto pulls your logo shows the new one. The file needs to be called logo.png
Click on Image Manager.
Upload the logo here.