The phrase "free download free" usually indicates users want a standalone installer without hidden paywalls or surveys. However, you must understand the risk:

If UMT keeps crashing, these tools offer similar "free" functionality for Samsung:

Because I cannot host files directly, here are the safest digital archeology methods:

Checksum verification: Before running any UMT v03 installer, scan it with VirusTotal. A few heuristic detections are normal for cracking tools; 15+ detections mean it is a virus.