You can also downgrade the s19 series to a lower version through SD card flashing but the problem their live download page isn't showing SD card images.
But you can still download it from the archive.org here below
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https://web.archive.org/web/20220206132736/https://shop.bitmain.com/support/download?product=Flashing%20SD%20card%20with%20imageDon't click the download instead right-click then copy the link and paste it to another tab make sure to delete the archive.org link before you enter.
Then follow the instruction
here on how to flash it through SD card.
About Whatsminer it seems there is no way to disable ASICboost because I think their units don't have ASICboost.
Are trying to mine on Nicehash? I heard that the new Whatsminer units do not support ASICboost pools if you have problem connecting to any pool try to use a pool with no ASICboost or that can switch to non-ASICboost server.