Hi Roger.
There are some software that manage to recover lost data as long as the medie is not damaged or fully formatted.
Google is a good helper when try find whatever, maybe this info can be for any help as a start:
https://www.techadvisor.co.uk/how-to/storage/how-recover-files-from-sd-card-3481659/https://www.stellarinfo.com/article/sd-card-recovery.php
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Cheers 🥂
GJ
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"Success is not counted by how high you have climbed
but by how many you brought with you." (Wil Rose)