1. USB Hard Drive Data Recovery Case
Study-WD5000BMVV-11GNWS
http://www.dolphindatalab.com/usb-hard-drive-data-recovery-case-studywd5000bmvv-11gnws
To readers: This data recovery method and steps are offered uniquely by Dolphin Data Lab, it’s not
allowed to post it anywhere else without our permission. We are using the following case study to
explain the methods in details. HDD ID: WD5000BMVV-11GNWS Capacity: 500GB PCB number:
20607-701675-004 USB2.0 design When the hdd was received from client, the engineer connected
the hdd to the pc and check if it spun up normally, to find out if it clicked. The diagnosis proved it
working
fine.
Next the engineer opened the hdd in winhex, the capacity can be detected but to view the sectors,
all write blocking errors. The engineer connected to DFL-WDII by selecting the USB channel and
all modules except module 04 and module 05 were read successfully. The engineer created a backup
of the tracks and ROM too, in case they were used at a later step, especially for data recovery. (All

2. users should have the habit of backup whenever you can) To test the heads and view sectors and
scan the hdds, all were good and luckily the module 04 and 05 didn’t affect the data. Next the
engineer tried to convert the USB interface to SATA interface following the instructions below:
(Available for dfl users only in the user-only forums.) After converting the USB interface to SATA
interface, the engineer connected the hdd to DFL-WDII and the hdd couldn’t be ready too, using
the digital multimeter to diagnose the connections and they were ok. Next the engineer found one
compatible SATA PCB and moved the ROM chip from the original PCB to this SATA PCB. Install
the donor SATA PCB to the original USB hdd and connect it to DFL-WDII, the MBR and DBR
were displayed correctly now, when scanning the hdd, there’re just a few bad sectors. Connecting
the hard drive to DFL-DDP USB3.0 data recovery equipment, the partitions could be listed
directly and the data were recovered successfully. Download the full case study here of the USB
hdd recovery and check inside the technique details.
Data Recovery Tools:
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HDD Repair Tools http://www.dolphindatalab.com/product-category/hdd-repair-tools/
Data Recovery Hardware http://www.dolphindatalab.com/product-category/datarecovery-hardware/
DFL-STII Seagate HDD Firmware Repair
Tool http://www.dolphindatalab.com/product/seagate-hdd-firmware-repair-tool-dfl-stii/
DFL-DE Data Recovery Hardware http://www.dolphindatalab.com/product/dataextractor-dfl-de/
DFL-DDP Data Recovery Equipment
http://www.dolphindatalab.com/product/dfldata-dr-pro-usb-3-data-recovery-equipment/