I have an SSD drive I bought some time ago for using in an old Mac laptop, replacing the slow, spining disk that was inside. Eventually I bought a new laptop and wanted to use this SSD with a case as an external drive. All worked well until one day I tried to format it (or convert it to APFS, or Encrypt it, I'm not sure exactly what happened). Anyway, something happened. No data was lost and I don't care about the data inside but I would like to be able to reuse the disk (after, it's a 1TB SSD).
As it is now:
- I can decrypt it (it was a FileVault drive) and see its contents
- Can't read any file
- Can't write any file
Since then, I've tried everying: Disk Utility first aid, fdisk, format, erase, etc. Tried similar tools things both on macOS and Windows.
I used Crucial's tool that says the hard drive is in good condition so I still have hope.
When I try to erase the whole drive I get:
"Unable to write to the last block of the device."
Running Disk Utility's First Aid:
"The operation couldn’t be completed. (com.apple.DiskManagement error -69874.)"
Running fsck_hfs searcing for bad blocks and dd to try and reset the whole drive I get:
"Resource busy" (which should be impossible since no drive is mounted)
I just wanna be able to format this and reuse it.