If you have access to a Linux system, the drive recovery command advised in the Etcher documentation is:
Make sure the drive is unmounted (
umount /dev/xxx
), and run the following command asroot
, replacingxxx
by your actual device path:
dd if=/dev/zero of=/dev/xxx bs=512 count=1 conv=notrunc
If that command gives you “permission denied”, it may be because it is not being run as the root user. You can also try prefixing the command with “sudo”:
sudo dd if=/dev/zero of=/dev/xxx bs=512 count=1 conv=notrunc