Many errors, especially Code 55 and Code 121, are not caused by the drive itself but by the connection chain. Loose cables, a failing USB hub, or an insufficient power supply can cause intermittent disconnections or timeouts during the intense low-level format process.
user wants a long article about the keyword "hdd low level format tool format error occurred at offset". This likely refers to encountering a "format error occurred at offset" message when using low-level format tools on a hard disk drive. I need to cover what this error means, why it occurs, and how to fix it. hdd low level format tool format error occurred at offset
Type list disk to view all connected drives. Note the disk number of the problematic drive. Type select disk X (replace X with your drive number). Type attributes disk clear readonly and press Enter. Many errors, especially Code 55 and Code 121,