And which firmware ?
If you try to use a high bitrate firmware with a slow memory card that might be the issue.
But memory cards also just die some times, and in my case even scary fast and funny enough when that have happened it have always been my most expensive and fast memory cards ( lucky to have then exchanged for new ones that have then worked well )
But i have had cards die on me before i got to fill them up one single time lucky Amazon have good RMA service.
If SD formatter 4.0 cant do anything with full format and overwrite selected your card are most likely dead / in read only mode.