Ultimately, you might try a reformat of the card, using the SD Association’s formatter tool.
https://members.sdcard.org/downloads/formatter_4/
Hopefully, others might have other suggestions, so that you don’t lose your content.
Ultimately, you might try a reformat of the card, using the SD Association’s formatter tool.
https://members.sdcard.org/downloads/formatter_4/
Hopefully, others might have other suggestions, so that you don’t lose your content.