The v19.1 update specifically added or enhanced support for several specific Samsung models:

Users can wipe or backup EFS (Encrypting File System) partitions, providing a safety net when performing sensitive repairs. Supported Models in v19.1

Samsung Tool is a free program that enables you to unclock your Samsung phone. Your vote: Old versions. Samsung Tool 20.0. Informer Technologies, Inc. How to flash Samsung Firmware using Z3X Box

The is a specialized professional software suite used for servicing, unlocking, and repairing Samsung mobile devices. Released as a key update by the Z3X Team, this version introduced critical support for a variety of then-new models, making it a staple for mobile repair technicians. Core Features of Z3X Samsung Tool v19.1

The tool provides functions to repair IMEI numbers and network configurations, which are often needed after a software corruption or board replacement.

GT-I9060M (Flashing, Unlock, IMEI/Network repair).