Solved
ST-LINK Utilities V4.0.0 save broken
Posted on October 29, 2016 at 17:48
having a frustrating time with the new utilities, using an STM32F103RBT6 repeatedly getting a ''fail to save bin/hex'' type error when using ''Save As''. Didn't seem dependent on file name, and file name didn't clash with any other file or directory.
Seems to be reading the firmware Ok, and can do a compare, etc. So not connectivity on the ST-LINK side, and probably unrelated to part#. Downgraded back to v3.9.0 and same filenames into same directories worked fine.