This drive was given to us by a smaller computer/data recovery client that had exhausted all they could in terms of recovering the data from this drive.
The drive was from a Seagate Expansion Portable drive that had failed to show on the computer. when plugged in, the drive made some scraping/scratching noises and was not detected as a drive.
The drive had severe damage to the Master File Table where there were multiple sectors that had been damaged or scratched.
We were able to isolate the damaged area and rebuild the MFT around the remaining file structure.
around 95% of the data was recovered and the client was happy to go ahead.