Assuming you get the box detected (green light), here is the toolkit available in v2614:
Unlike the standard Z3X box (which covers LG, older Motorola, and basic Qualcomm ports), the MST Exclusive is a software-locked tier. It provides access to Samsung-specific advanced routines: z3x mst tool v2614 exclusive
It is crucial to note that while the Z3X MST Tool is a legitimate tool for authorized repair centers, certain functions (like IMEI repair) are restricted or illegal in jurisdictions like the UK, Europe, and parts of the US. Version v2614 includes a geolock feature that disables IMEI changing if the software detects you are in a restricted region. Assuming you get the box detected (green light),
Z3X does not condone unlocking lost/stolen phones. The "Exclusive" version requires a verified technician ID in many cases to download the full package. Verdict: For a repair shop handling 20+ Samsung/Xiaomi/MTK
Compared to competitors:
Verdict: For a repair shop handling 20+ Samsung/Xiaomi/MTK devices per month, Z3X MST v2.6.1.4 pays for itself in 2–3 jobs. For hobbyists, it's expensive but useful if you buy second-hand.