This is a modified version of SEGGER STLinkReflash utility

You will probably have to downgrade your St-Link to an older driver. Tested on clone using: STSW-LINK007 2.36.26 version

How to:

Windows:

1. Unpack St-toJ-.zip
2. Make sure .exe and .dll is in the same folder
3. run STLinkReflash, follow instructions.
4. Done

MacOS/Linux:

1. Don't know, was originally made for Windows only

Thanks to NSA/Ghidra It's as simple as modifying the following binary offsets

2566 (break) 3C -> 38

2567 (new) 40 -> C0

26B2 (break) 3C -> 38

26B3 (new) 4A -> C0

Additional .gzf file and .c export provided