If you see a "Failed to connect the Internet. Go to http://www.operamini.com/help?version=4.4" error, it usually means a network or setting issue.
Opera Mini 4.4 is often cited as one of the most stable releases for feature phones. It bridged the gap between the WAP era (text-only internet) and the smartphone era (full HTML browsing). Www.operamini.com Help Version 4.4