Its very SAd to Say that i am also a Victiom of this !! I have a Galaxy S3 and after using my 64GB perfectly fine for about 8-9 months , then this Happens !! i can only Read the files which i have but cannot Write anything . I mean it shows that it is copying and formatting but after a while it just returns back to its old Self !!
I found a Solution Online , and many ppl said that it worked for them & some said it didn’t !! well its a mixed Review !!
I haven’t tried it Yet bcuz i am waiting for my Card Reader to arrive which i ordered (currently i dont have any with me)…
So give this method a try and see if it Works ----- >>>>
1. Pluge this drive or memory card to a computer. (Of course, you should use a card Reader to connect your memory card.) 2. Click “Start” on the taskbar to open “Run” and type in “regedit”. 3. Hit “HKEY\_LOCAL\_MACHINE” to expand “System”. 4. Find “CurrentControlSet” in “System” list 5. Then expand “Control” in “CurrentControlSet” list. 6. Check whether there is a key named “StorageDevicePolicies” to change the digit in the “DWORD value” box into "0" and press “OK”. But, if you cannot find the key named “StorageDevicePolicies”, you are supposed to create one: right click “Control” to create a new key and name it as “StorageDevicePolicies”=\> right click on this new key\>New\> click “DWORD Value” and name it as “write protect”=\> Double click it to change number.
IF You Try this Give Your Feevback please !!!