Thanks for reaching out. This feature was built on an older system connected to G+ that no longer works. We suggest using a desktop browser or http://aboutme.google.com on a mobile browser to change your profile icon/banner. Hope this helps.
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Thanks for reaching out. This feature was built on an older system connected to G+ that no longer works. We suggest using a desktop browser or http://aboutme.google.com on a mobile browser to change your profile icon/banner. Hope this helps.