Thanks to @taprackpull 01-Feb-19 and @derek 30-Apr-20, I have recovered both USB Flash Memory sticks that got “bricked” whilst using balenaEtcher-Portable-1.5.98.exe running on Windows 7 as Admin to Flash linuxmint-19.3-cinnamon-64bit.iso onto USB 16Gb.
Etcher failed immediately with an “Oops something went wrong …” notification helpfully suggesting that either the drive was read only or the ISO image was corrupt - neither true!
I wasn’t able to screen shot this but other screen shots are attached, including the method of recovering the USB.
Etcher killed my USB stick.pdf (513.3 KB)
I observe that it is the Create Partition Primary command in DiskPart.exe, rather than the Recover or Clean, that restores the Volume back to RAW and Healthy. Then a Windows Disk Format succeeds in setting the format to FAT32.
I understand that tool changes the disk format to suit Linux and this is incompatible with Windows. However it is clear to me that in the process the tool trashes the drive (as far as the Windows environment is concerned) before it completes the transfer of the ISO image.
Obviously the tool has to be able to write the image successfully in the Windows environment before changing the disk format to suit Linux. It also needs to be able to restore the disk format back to suit Windows for further updates. So that the user does not need to resort to using something like DiskPart.exe to do this.
However this leaves me no further forward towards getting Mint 19.3 Cinnamon 64-bit flashed onto USB.
Please can someone suggest a good dependable alternative to Etcher, cos I’ve wasted enough time on this and clearly there is a long standing problem here that ain’t getting fixed.