It has been nearly nine months since my 2TB external HDD suffered corruption after it unplugged unexpectedly due to its unstable cable. This issue has persisted since I purchased it in 2014, and the drive was initially formatted for NFTS as intended for use with my Time Machine. Throughout this period, the unit remained detected on both Mac and other PCs, operating normally without unusual sounds. I attempted several solutions that can be summarized in three steps: First, using Disk Utility's main menu options—First Aid, Partition, Erase, Restore—but these proved ineffective. I then tried Photorec and TestDisk, emphasizing the need to install Unix libraries missing on Mac OS for proper functionality. Despite mounting and unmounting attempts with elevated privileges, the problem persisted. Some Apple forums suggested this issue started after the Catalina update, which matches my current setup. I found hope in a previous discussion on the same community, hoping someone might have discovered a resolution that addresses this Apple-specific concern. Wishing you a pleasant holiday season!