Hard drive data recovery is our speciality

Hard drive failures come from a wide array of circumstances, Our data recovery experts have categorized hard drive failures in 4 main ways: Logical failure, Firmware failure, electrical and Mechanical damage. Each issue has a different level of severity, and method to recover the data. Hanyang Recovery in Shanghai's professional hard drive data recovery team can perform hard Drive recoveries on all types of hard drives. With a team of specialists dedicated to staying ahead of the constantly changing environment of technology, you can be certain you are getting the highest quality data recovery at an affordable price.

Logical Failure

Logical failures happen instances like through file system corruption, bad data sectors, viruses and malware, accidental deletion of files, or formatting of the wrong drive or partition.

"I have been using this external hard drive on my PC, and also connecting it to TV to for some shows. And now when I plug it onto computer it asks me to reformat the drive before I can use it. What's wrong with my external hard drive?" 

This is most likely that the hard drive has file system corrupted. When a hard drive is used in different operation system constantly, it tends to have the file system corrupted. The drive is usually operating normally as the manufacturer intended and can be recognized by the computer, but data is inaccessible because the file system is damaged.

Please note :If HDD is detected by 0 Gb capacity, the one of heads was broken.
Logical data recovery costs: US$100-$150

Firmware Issue

Just like all other electrical devices, hard drive has its own firmware (simply a firmware is the device's operating system). Without the healthy firmware, a hard drive will not be able to operate normally.

"My hard drive shows up on computer but I can't see any files or folders."
These symptoms can indicate that the hard drive has firmware damaged, and of course it can be other issues as well. We have a team specialize in firmware repair in Shanghai recovery lab.By using our right tools with professional knowledge, hard drive with damaged firmware can be recovered within 1-3 days.
Firmware Damaged data recovery costs: US$150

Electrical Failure

Electrical hard drive failures usually happen when a computer or drive enclosure is subjected to a sudden power surge and high voltage bypasses the computer or enclosure circuits to also damage the hard drives own printed circuit board (PCB) rendering it undetectable by the system BIOS.

"There was storm and I got a black out in my house last night, and this morning I found my hard drive not working."
This is most likely that the hard drive has electrical failures, either the hard drive's PCB or the enclosure circuits is damaged. Our data recovery engineers in Shanghai suggest that signs for electrical problems are usually the drive not being recognized by the computer and/or not spinning at all. There may even be noticeable signs of burnt components on the PCB underside of the hard drive.
Damaged PCB data recovery costs: US$150

Mechanical Failure
Hard drive mechanical issue means that any of the moving parts inside hard drive has damaged. The sensitive internal components include read/write heads, actuator arms, spindle motors or platters.
When mechanical issue occurs, it normally produces some strange noise such as clicking, clucking, whining etc. , or it appears "Dead", not detected by system BIOS. The most common causes to physical failures are overheating, dropping, mishandling and power surge.

"My hard drive was dropped, and it makes some strange noise when it's powered, and my computer can not detect it."
The hard drive is most likely having a mechanical damage. To recover a physical/mechanical damaged hard drive, the damaged internal parts/components are to be replaced. Mostly the data can be recovered, but when the platter(s) is/are scratched, data will be unrecoverable.
Physical Damaged hard drive data recovery cost: US$250-US$600

We deal with over 1500 hard drives a year:(We have more than 20 partners in the world)

File System Corruption
Firmware Corruption
Hard disk not detected
Unable to access any data
Deleted files/Reformatted hard disk
Damaged partition table
Damages in partition data structures
Partition is formatted or deleted etc
HDD initialization issues
Read forward and backward
Read ahead (cash function) disabling

We are specialized in recovering DEAD hard drives:

HDD is not detected in BIOS
HDD is detected by vendor's name
HDD is detected by 0 Gb capacity
Service modules are corrupted
Translation system is damaged
SMART,Logs overflow
Multiple BAD-sectors
Some heads are damaged
"Knocking sound"
Spindle is not rotated
PCB is damaged
HDD has problems with PCB and HDA compatibility

HDD locked passwords

HDD encrypted data recovery (Windows Bit Locker, Mac SSD or os File Vault)

and much more

We successfully recover data from all manufacturers including:

Seagate Data Recovery
Western Digital Data Recovery
Maxtor Data Recovery
Hitachi Data Recovery
Fujitsu Data Recovery
Toshiba Data Recovery
Samsung Data Recovery
IBM Data Recovery

We deal with all different operating systems including:

Miccrosoft Windows
Mac OS
Virtual Machines (VMware, Citrix, Sun, etc.)