Wondershare Dr.Fone does not have a fully "free" version for most of its advanced repair and recovery features. Instead, it offers a with strict limitations designed to let you preview if a solution is possible before requiring a paid license.
You can scan and preview lost data (photos, messages, contacts) to see if they are recoverable, but you cannot save them to your computer without the full version. Screen Unlock & System Repair: dr fone wondershare free