Here is the full post you can use to share the Z3x Samsung Tool V19.1 setup, including features, installation instructions, and download links.
Version 19.1 introduced:
Settings > Developer Options and enable USB Debugging.
Z3x Samsung Tool V19.1 is an excellent tool for retro-tech repair or working on vintage Samsung hardware. However, if you are looking to service a device made within the last 8–10 years, this version is obsolete. For modern repair needs, you should use the latest Samsung Tool Pro available via the Z3x Shell. Are you trying to repair a specific Samsung model, or Z3x Samsung Tool V19.1 Setup
Even with careful installation, issues arise. Here are the most frequent: Here is the full post you can use