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More Case Studies

Learn how to recover lost data from different damaged hard drives using Dolphin data recovery tools, recover multiple faulty hdds, easy to use and powerful for worldwide users!

Hitachi HCC543232A7A380 DVR HDD Unlock and Data Recovery

This is one Hitachi HCC543232A7A380 DVR HDD from one DFL user in Germany.

The user is trying to use DFL Hitachi HDD firmware repair tool to remove the DVR lock and access to the hdd SA area and data area. With DVR password in this hard drive, the user couldn’t even read rom and nvram and couldn’t read firmware modules too. Read more →

ST1000DM003-1CH162 VS ST1000DM003-1SB102 Recovery Tips

When we are doing our data recovery jobs, data recovery engineers may meet many Seagate HDD data recovery cases of the following models: ST1000DM003-1CH162 and ST1000DM003-1SB102.

What are the differences between these two models? Read more →

Be Careful of This Type of Physical Head Issue

This is one remote data recovery case from one DFL user in India and this is one failed data recovery case but it is important for users to get some good experience from it.

Patient HDD ID:
SN number: Z1DC7H7C
Firmware version: CC47 Read more →


This is one WD DVR HDD from one Germany DFL user.
The user wishes to remove the DVR password, get the lost data back and use the HDD again.

Patient HDD ID:
Model number: WDC WD3200BUCT-63TWBY0
SN Number: WD-WX11A15A0TU0 Read more →