Hi @ezeke2211
AFAIK some flash memory has a mechanism, when there are many bad blocks or failing, the SD card will be locked to read only, as to prevent further data corruption.
You can try to use AOMEI partition assistant.
If it fails to bring back the write function, most prob the card is having many failure blocks / lifespan has reached.
depending on your region, you can send your defective SD card to samsung for a replacement,
e.g from my region
Warranty Period
Type
SD Standard - Limited 5 years
EVO, EVO Plus, EVO Select, PRO, PRO Plus, PRO Select - Limited 10 years
UFD (USB Flash Drive) - Limited 5 years
This warranty will only apply to the types of product specified above.
The Warranty Period on any replacement product will be the remaining portion of the Warranty Period given on your original product.
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You state: 'the data stays the same' So what it had on it still shows as if the format didn't work?
da Dan