Media information: 2 hard drives, hard drive brand: Western data capacity: 320G, 80G Model: WD3200AAJS-22LYA0, WD800BB-63JKC0 Customer Name: Mr. Zhang Fault description: The customer's hard disk is not recognized on the computer and is not recognized. Data recovery process: 1. After the hard disk detection, the Darth data recovery engineer judges that the hard disks are head faults. 2. The Darth hard disk data recovery engineer first performs the replacement operation of the head assembly. After finding the matching heads in the spare parts library, open the hard disk in the Class 100 clean room, replace the prepared magnetic head with the disk that needs to recover the data, and then install all the parts to seal the disk. 3. Afterwards, the engineer hangs the hard disk on the dedicated recovery machine of Das. After the engineer debugs, the hard disk is found to be recognized normally. After several decades, the cloned work data is basically restored. Data recovery results: Data recovery was successful. Advice to customers: Regularly use the hard disk to back up important data regularly, sometimes the data is suddenly lost without precautions. When it is found that the medium is abnormal, it is necessary to reduce the power supply to the medium. Data loss The first time to find a professional formal data recovery company to do data recovery, so as not to cause significant loss of data permanent loss. Darth data recovery, specializing in high-hard disk, raid server data recovery, Beijing data recovery professional brand. Teaching demonstration. Observation and explanation. Interns deepen their cognitions. Doctors and patients communicate. Doctors' office and exhibition decoration. Intuitive teaching aids. Bio Model,Biology Model,Cell Division Model,Biology Science Model Xinxiang Vic Science&Education Co.,Ltd. , https://www.hnbiologyspecimen.com