Functions like "Scan & Repair" remap bad sectors to spare areas or write zeros to them.
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For professional firmware repair, (around €150-200) is a reasonable investment if you do regular data recovery work. Functions like "Scan & Repair" remap bad sectors
SeDiv 2.3.5.0: HDD Repair Tool Guide | PDF | Hard Disk Drive consider these safer paths:
If you are trying to fix a hard drive or recover data, consider these safer paths: