Easy extension hard disk does not recognize firmware damage data recovery Darth Technology
Media Information: Easy Extension 80G Hard Drive Model: ESJ880 File System: FAT32 Computer is XP System
Fault description:
When I received the computer, the hard disk did not recognize it and could not read the data. The client tried to restart the computer several times.
Data recovery process:
The customer said that this problem occurred after the hard disk was suddenly powered off under normal working conditions. It has been normal before. The engineer detected that the head seek sound was normal but not recognized.
The engineer then accesses the PC3000 UDMA to view it, the head is reset normally, but the ID is not recognized. From this phenomenon, hardware faults can be roughly ruled out, and it is inferred that it is a firmware problem. Select the series from the custom family to enter the family, detect the SA area module, and find that most of the modules are normal. According to past experience, it is likely to be a problem with NV-RAM. The following is the need to regenerate the matching NV, and then write back This operation can be done using the functions in the PC300.
After the write-back is completed, the power is turned off, and the main program is re-entered. The head is reset, the ID is normal, and the scan can be performed normally. Finally, the data is directly copied to complete the data recovery.
Data recovery result: data recovery succeeded
Summary:
In this case, the NV fault is still relatively easy to handle. In other cases, the Hitachi disk NV fault is more troublesome and takes a long time. If you want to speed up the NV, you need to find the circuit with the same parameters. Go and do it.
Advice to customers:
If the hard disk fails, stop the operation for the first time and find a professional data recovery company to recover the data.
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