Hello Just want to say that English I know is bad, learning. I would be grateful if you help with a question. I ST3500320AS 500 GB. Restored it through Hyperterminal as instructions. The problem occurred in the complete erasure of (full), at process up to 62%, that is, until the 672 millionth head pops up error A9E4CF52, A9E4CFE2. Then another tried to make a short and a long repair. The same result. If you set the size manually to 62% of the space (in SeaTools), then I think it's part of the hard drive will work without problems. HDD space opened in HEX check this area for the presence of zeros. All zeros. Is there a way to restore this crash or a mechanical problem and did not fix it?