Unable to format SD card I was using my SD card on my phone. One fine day it showed a message that it was corrupted. I put the card in an adapter and plugged it into my iMac.



I was able to read and copied all I need. I decided to format it anyway and used disk utility to do so. 


It said that it had finished erasing, but all the files were still on it.



I tried deleting each folder. But when I ejected and put it back in, the files are still there. I can't format it via my phone either and I am too scared to use the terminal for erasing. Can anyone help me?
It's dead.
Smash it to prevent your data being stolen &amp; throw it away.

If a write error occurs, the firmware controller will switch over to read-only mode to prevent further data loss. This is to all intents &amp; purposes, irreversible.