why is that mirco SD cards can be corrupted so easly? i have atleast 5 sandisk micro SD card that r corrupted in a way to where they will not format and let files copy over. why is that after all these years with micro SD cards being out they havnt fixed this bug yet? hell i had atleast 3 go into lock mode on me when mirco SD cards dont have a lock switch on them. those 5 cards i have two of them r 65GB and the other three 32GB.
Not sure what is happening or why in your case, but I can truthfully say I have purchased & used over a dozen thoughout the past several years, used them in various devices and/or purposes & have yet to have one fail on me or give me a lick of trouble.