Samsung Tool 19.1 Link

: It was released during the peak of the Samsung Galaxy S4 and S5 era. It supported an enormous range of older models that are still floating around today, making it a "legacy" essential.

Enable on your phone (Settings > Developer Options > USB Debugging). Connect the phone to the PC via USB. samsung tool 19.1

What (e.g., IMEI null, carrier lock, bootloop) are you facing? Are you using an official Z3X box , or : It was released during the peak of

Evolution to "Pro" status, introduction of smartcard hardware tokens, standalone loader stability. Discontinued / Frozen Broad 3G, 4G, and early 5G chipsets. Connect the phone to the PC via USB

Up-to-date official Samsung drivers must be installed so the PC recognizes the device in Download Mode.

You cannot. The official version was never released as "19.1" without a dongle. The cracked 19.1 is distributed only through pirate channels.