Hi
I have the same problem with my micro SD card for my S4 active.
it is possible to access the data but not to delete and write on the card (therefore it is not possible to format as well).
The card is mounted to the Phone.
What I tried:
-Restart the phone (with removing battery for several minutes)
-Putting the card in the laptop and by right clicking on it and opening properties, no tab for securitiy is available.
-Checking registry why the tab is not available (StorageDevicePolicies entries are not existing and for other folders the tab is available, so that shouldnt be the problem)
-try to format the card on my laptop wount work because of restricted write permissions as well.
-There is no switch on the card for locking
Does any one has an idea how to format the card now?
Thanks for your ideas