Open the hard disk data recovery

Open the hard disk data recovery: 
Open data recovery means: When the hard disk failure occurred in the disk cavity components (such as motors, heads, pre-amplifier, voice coil, drive arm), the need to open the disc cavity, failure of components will be replaced by Ichiban, After re-assembly, the hard disk can be "normal" to identify, can be stored on the disc to extract important data and re-stored in a completely normal work hard among so as to achieve the purpose of data recovery techniques and methods. 
A typical hard disk failures require opening phenomenon: 
Hard power, the motors can play a turn, BIOS does not recognize, accompanied by "carbazole, carboline," the larger sound. (The main factors causing this phenomenon as a head cheaper, aging, deformation) 
Hard power, the motors can play a turn, BIOS can identify, district, or the directory structure to normal, but can not copy or read any data, especially large files. If you use the hard disk scanning software can be found in a regular contiguous bad sectors. (The main factors causing this phenomenon for multi-head hard drive, the system head intact, but there are a head or a few head damage) 
Hard power, the motors can play a turn, turning is not different sound, BIOS does not recognize.(The main factors causing this phenomenon may be pre-amplifier factor damage, read-write channel failure) 
Hard power, the motor can not play turn, will drive close to the ear can hear, very slight "squeak, squeak" sound. (Causes of this phenomenon of two main factors, one motor Hugging can not play turn, second, the head adsorbed on the disc, motor protective switch can not afford to) 
Pelvic flooding 
Open a prerequisite for data recovery: 
Accessory plate: Since the hard disk drive manufacturers do not sell the parts separately, so can only drive the same model and fault extraction of a good disk. This dish requires customers to provide or pay for parts acquisition costs, by my company Shopping Service. 
Environmental conditions: the hard disk needs to cleanliness of the environment of high production, assembly. Use also need to maintain "clean" environment. Therefore, delivered to the user's hard drive manufacturers are a sealed, electromechanical integration equipment.When the hard disk need to open the replacement parts failure, the same need to "clean" environment to operate. 
Data Recovery Engineer: drive is a very sophisticated mechanical and electrical integration of equipment, opening data recovery, which means the hard disk needs to be completely demolished and replaced with high yield component failure and re-assembled, so that you can correctly identify the hard disk again. This work need to be very skilled with extensive practical experience in data recovery engineer to complete. Ordinary computer repair / maintenance staff could not do. 
Opening in the end What environment? The answer is clean room / or a clean bench. 
Clean between the cleanliness of the difference is in accordance with the appropriate level to distinguish the difference. Between the level of the current domestic cleaner is divided into 100 (100) level, 10000 (10000) level, 100000 (10 
10000) level. Some data recovery companies advertising 10 (10) level, or one million (1 million) class clean rooms are all non-professional performance, but also conform to customer's bargaining psychological, deliberately misleading customers, allow customers to mistakenly think that cleanliness of the higher The higher the cost, so customers can more easily accept a high data recovery services. Such companies have ignored or are too afraid to return to their clients opening more difficult to understand the technical requirements and data recovery engineers, technical grade, proficiency is opened to restore the most important guarantee of success rate, rather than the device itself. 
To give a simple example, a doctor patient surgery, surgical medical equipment needed for them of course very important, but more important is that doctors can control these devices, if he is not a solid theoretical knowledge and rich practical experience, to give him Even the best equipment, but also save the patient's life.