This is a Perl / ExifTool script to fix the files created by the Android Camera2 DNG API.
the API has a bug, causing the creation Timestamp to be set at the instance creation and not at the image capture time: Issue 157238: Incorrect Date on DNG Images from Camera2 API
I included the Perl source and a W32 executable created with pp (PAR Packager).
For usage instructions, execute the script with -h or --help options.