Following are the steps to change banner image on your CincoTube site
Step 1 Upload new image to your Cincopa account
Step 2 Obtain image URL from your Cincopa account under:
Assets> Versions > Click on Copy URL next Original or image resolution of your choice
Step 3 Insert image URL to SRC string of <img> tag of your banner under CincoTube header fragment
For example: <img src = "Insert image URL here">
Step 4 Click on Save and refresh your CincoTube page