08-14-2015 09:40 AM - edited 08-14-2015 09:43 AM
i've had my MicroSD for about one year atm and all of a sudden it became unwritable. the files stored on the SD are not to be deleted and when a new file is stored on the SD it vanishes after about 30 seconds to a minute... i tried formatting it again to exFAT but every time i do the files will show up gain after about a minute. I do not know much about MicroSD Cards so i thought maybe someone here might be able to help me out.
Thanks in advance,
Jari van Drongelen
NB. I used it in my Android Phone (HTC One (M8))
08-14-2015 09:54 AM
the card seem to be locked in read only mode. this occurs when the controller detects a problem with the card. It locks in read only mode to prevent data loss. there is not anyway to unlock the card it will need to be replaced. Contact sandisk support for warranty replacement.
08-18-2015 12:58 AM
I am currently in the exact situation and applied for RMA. It has been approved and I need to send the microSD card to SanDisk.
However, I am concerned with the privacy of the data on the returned microSD card.
Could anything be done to make the data unreadable without affecting the RMA?
08-18-2015 02:49 PM
I too have the same situation. I can delete everything off the card and then it all appears again as if by magic. I cannot format it in Windows as it says "Windows is unable to complete the format". If I try to format it in SD Formatter V4.0, it says "The memory card is write-protected" (it isn't).
08-25-2015 12:14 AM - edited 08-25-2015 12:16 AM
Update: I chatted with a SanDisk representative and they agreed that I send the card destroyed. You must ask for permission to destroy the card before sending it back. A printed confirmation email will need to be sent together with the destroyed card.