You can view the DFL case studies and FAQs here so that you can understand how to use the DFL data recovery tools better

Here is the video on how to recover lost data from WD10JMVW 11S5XS1 undetected hard drives without data access.

Patient HDD ID details:

Model number: WD10JMVW 11S5XS1
Family: Firebird
PCB: 2060-771823-000
Head number: 4

If users enter DFL-WD hdd firmware repair program, the HDD ID couldn’t be detected properly and the firmware modules are not accessed too.

To recover lost data from this kind of cases, users need to short connect TV9 and TV10 and enter program, backup ROM, disable 02, firmware restart, re-enter the program.

After above steps, the firmware modules were already available.

Next the engineer went to click the common repair-Slow fix and unlock smartware.

Next the engineer tested all the firmware modules and found out which modules were corrupted. The module 32 was corrupted, the engineer found one donor 32, wrote to hdd and cleared the module 32.

Next the engineer enabled module 02, firmware restart.

Next the patient HDD was perfectly fixed and the data area was accessed too.

Next the engineer opened DFL-DDP data recovery program and all lost data was perfectly recovered.

Any question is welcome to or add Dolphin Skype ID:

This is one real case study of Seagate ST1000LM048-2E7172 for one Dolphin user in Mexico and this patient HDD has LED and Update Mask error reported in the COM terminal.

The following are some of the error messages:

Update Mask – 00000000144CACA0 – 00000008 – 00

Starting LBA of RW Request=0002898F64 Length=0000094E

ProcessRWError -Read- at LBA 0002899595 Sense Code=43110081

Common path start quit now
ProcessRC: 00000000,00000000
SkipLen: 00000000
ReadContinuous: 0289940B,0000031A
NumUDEs: 0000001C,00000187,0000030F
Passed: 00000080,0000013D,000002CA


LED:0x000000BD FAddr:0x0000780F
LED:0x000000BD FAddr:0x0000780F
LED:0x000000BD FAddr:0x0000780F

Within DFL Seagate HDD firmware Repair Tool, users can go to COM terminal. After writing unlock ROM, power off and on, users can find the handshake value, send unlock key and keep pressing ctrl+z at the same time. Users must enter F3 T> before the patient drive entered LED status.

After entering F3 T>, things become easy.
Users can easily backup the important SYS files, clear g, clear smart, write down nglist entries, regenerate translator, clear media cache.

After the firmware corruption is fixed, the user opened DFL-DDP data recovery program and all lost data was perfectly recovered.

Watch the video on how to repair and recover lost data from ST1000LM048-2E7172-LED Update Mask patient HDD.

Any question is welcome to or add Dolphin Skype ID:

This case study is the first case Dolphin engineer fixed for one DFL user from Indonesia after Dolphin Spring Festival in 2022. The com terminal reports LBA read error and also update mask error. Read more

Model : ST2000LM007-1R8174
Serial : WDZTWCP3
Firmware : EB01
Capacity : 3907029168 (1863.02GB)
Sector size : 4096
Heads number : 4 Read more

This is one of success cases done by DFL engineer today for an Australia user. The HDD ID information can be identified by program, but almost all sectors are inaccessible, and unable to see firmware module list either. Read more

DFL-URE Plus is able to connect and access to the data drives of Surface Pro. laptops version 5, 6, 7.

To connect the data drives, users need one Surface Pro BGA Data Chip Adapter NVME Version. All users need to do is to solder the data drive off the surface pro laptops and then clean the data chips. Read more

DFL-URE Plus is able to connect both 2.5″ and 3.5″ SATA hard drives if users use Dolphin USB-SATA adapter and then users can make best use of the detailed settings within DFL-URE plus software to image the patient drive or extract the lost data. Read more

DFL-URE Plus is able to connect all USB external portable hard drives directly and if these drives are detected, users can run disk image, selective head image, partition image, data-only image, file extraction, raw recovery, etc. Read more

NVME SSDs are more and more common in all data recovery labs worldwide but cannot find many professional nvme ssd data recovery tools. Read more

DFL-URE Plus is one very cost-effective data recovery hardware tool, it is very easy to use. All IT specialists or data recovery engineers can use DFL-URE Plus to fix many common data recovery cases. Read more