How to convert crypt12 to crypt14. Recovery of WhatsApp backup history. Possible crypt12 to crypt14 converters.
It is pretty much certain that no designed for the purpose of crypt12 to crypt14 exists, which means crypt12 to crypt14 conversion is unlikely. The only thing users can do is to copy your old .crypt12 files to their device with latest WhastApp installed and these files should be automatically converted to newest format.
In a word, direct crypt12 to crypt14 conversion is not possible.
So don't expect any so-called crypt12 to crypt14 converter or crypt12 to crypt14 free online conversion tool available.
The database currently does not contain any crypt12 software converter.