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ST4000NM0035 HDD Firmware Repair and Data Recovery Steps

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This is one successful ST4000NM0035 HDD Firmware Repair and Data Recovery case study for one Dolphin user in India.

Patient HDD ID:

Model : ST4000NM0035 03X4440 LENOVO
Serial : ZC187T35
Firmware : LJ87
Capacity : 7814037168 (3726.02GB)
0Bytes
Sector size : 0Bytes
Heads number : 7

FW version : MFAND29B1.LXN1.BW0B61.LJ87
FW package P/N : 100826175

Patient HDD Failure:

The data area was not accessed
MFT was damaged

HDD Repair Tools and Data Recovery Tools used in this case study:

DFL-Seagate hdd repair tool
DFL-DDP data recovery hardware tool

ST4000NM0035 HDD Firmware Repair and Data Recovery Steps:

01: ST4000NM0035 ROM backup and Unlock rom generation;
(This hdd requires one different method to generate the unlock rom, Dolphin users can select mode 2)
02: Write unlock rom and send unlock key to unlock the ST4000NM0035 patient HDD successfully;
03: Backup important Sys files;
04: Fix the translator issue: clear V4 and smart and then regenerate translator;
05: Fix the common slow issue;
06: Enter DFL-DDP data recovery software and scan lost partitions reversely for NTFS;
07: Easily found and recovered all lost data.

Users can watch Dolphin data recovery video channel here to see how Dolphin data recovery tools recover different storage medias at high success rate.

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Bitlocker Protected Partition Data Recovery Steps

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How to recover lost data from bitlocker protected partitions?

If users have data recovery tools, users can enter the backup recovery key(48-digit) within the recovery software and then users can use the recovery tools to extract the lost data directly.

If users don’t have data recovery tools, users can prepare one USB booting device to enter win pe os to decrypt the bitlocker protected partition and then copy the files directly to one safe place.

Users can find the bitlocker recovery key in the Microsoft account or search it in your local drives.
If the recovery key is completely lost, the chance of recovery is very low or impossible.

Download the document above to read the complete steps to recover lost data from the bitlocker protected partition.

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WD7500BPVX-75JC3T0 Undetected 1961 HDD Firmware Repair and Data Recovery Steps

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This is one more successful Western Digital 1961 undetected hard drive firmware repair and data recovery case study from one Dolphin user in Ethiopia.

Patient HDD ID:

WD7500BPVX-75JC3T0
PCB: 2060-771961

Patient HDD Failure Symptoms:

Undetected;
When trying to obtain details, nothing can be read and the patient hdd hung there.

HDD Repair Tools and Data Recovery Tools used in this case study:

DFL-WD hdd repair tool
DFL-DDP data recovery equipment

WD7500BPVX-75JC3T0 Undetected 1961 HDD Firmware Repair and Data Recovery Steps

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WD141KRYZ-01C66B0 hdd firmware repair and data recovery steps

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This is one very successful Western Digital HGST helium hdd firmware repair and data recovery case study from one Dolphin user in Turkey. The user has tried other software and solutions but failed to get the lost data back.

Patient HDD ID:

WD141KRYZ-01C66B0
14TB

Patient HDD Failure symptoms:

When trying to access data, full of bad sectors, no sectors are accessible
Status registers report UNC error and some other software report ABR error

WD141KRYZ-01C66B0 hdd firmware repair and data recovery steps

01: Connected patient hdd to DFL-SRP or DFL PCIe data recovery hardware;
02: Open DFL DDP data recovery software;
03: Power on patient HDD and wait until ready;
04: Click HGST translator recovery within the common repair section and wait until the log window reports ‘operation completed’.
05: Power off and on and users can access the data area successfully and all lost partitions, folders and files are available for immediate data recovery.

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WD Hitachi HGST Helium Drive Common Repair-One Click Fix in DDP

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One new common firmware repair solution-quick fix of WD Hitachi HGST helium drive UNC error is now available within DFL-DDP data recovery equipment.

When users are running the logical scan/bad sector scan, no sectors are accessible with UNC error reported and now this error can be easily fixed by one click in the DFL-DDP data recovery software.

Video demo on How to Recover WD Hitachi HGST Helium Drives by One Click 

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Toshiba HDD ROM Chip Recognition

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For some Toshiba HDD PCBs, it’s not easy to recognize the rom chip because there’re two similar chips which look like the same but actually different.

Example PCB numbers:

G003189A
G003250A
for MQ01UBD100

ROM chip: IC602
Close to main chip

Related Helpful Product: Toshiba HDD USB-SATA PCB Package Pro.

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WD40NDZW 11BHVS1 WD SMR 810033 Undetected HDD Data Recovery Steps

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Video case study and free WD SMR hdd data recovery training video: WD40NDZW 11BHVS1 WD SMR 810033 Undetected HDD Data Recovery Steps

Top recommended WD SMR 8x00xx HDD USB to SATA adapters for best success rate.

Must-read WD SMR HDD Data Recovery Cases and Tips

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ST5000LM000 Seagate HDD Data Recovery Steps

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This is one successful data recovery case study for one Dolphin user in India.

Most dolphin users can handle this kind of data recovery cases by themselves but for new users this case study will be very helpful to learn to improve data recovery skills.

Patient HDD ID:
Model-ST5000LM000

Failure symptoms:
Undetected HDD ID;
Data area was not accessible;

ST5000LM000 HDD Repair and Data Recovery Steps

01: make sure the patient HDD enter F3 T> and the com terminal works properly;
02: Unlock the firmware area;
03: Backup important SYS files;
04: View and confirm the nglist entries;
05: Clear glist, smart and regenerate translator;
06: Fix data encryption issue;
06: Open DFL-DDP data recovery software and all lost partitions and folders were recovered.

Users can add Dolphin teams ID: sales@dolphindatalab.com for live support.

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USB Flash Drive Data Recovery Tips and Tools

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USB flash data recovery cases are very common in all data recovery labs but not many data recovery engineers can recover the lost data from these USB flash patient drives efficiently.

Data recovery engineers need to have good knowledge of USB flash drive failure types and how to recover lost data from different damaged flash drives.

USB flash drive failure types:

  • Frequent or wrong connection or disconnection of USB flash drives to computers to get the USB ports unstable or even sometimes physically damaged;
  • USB flash drives are physically damaged and users need to open the usb drives and do some wiring or chip soldering to recover the lost data;
  • USB storage medias are aging and the read and write are very slow with many bad sectors;
  • Data loss caused by accidental power loss/unstable power supply;
  • Data loss caused by accidental file deletion, format, virus attack or system corruption.

Tools suggested for USB flash drives data recovery

Once there’s data loss on the USB flash drives and users wish to recover the lost data, users cannot continue saving any files further or cannot connect or disconnect again and again to avoid permanent data loss.

Any question is welcome to sales[at]dolphindatalab.com.

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WD Busy SMR HDD Firmware Repair and Data Recovery Steps

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This is one typical western digital SMR hdd firmware repair and data recovery case study, the patient drive was busy, the firmware area and data area was not accessed, the patient HDD ID was not detected.

To recover the lost data from above busy WD SMR hdd, users need to have the following tools:

01: DFL DDP data recovery equipment;
02: DFL WD hdd firmware repair tool

HDD firmware repair and data recovery steps:

01: Get WD SMR busy hdd ready;
02: Read patient HDD ROM by HDD rom chip pin reader;
03: Generate unlock rom by DFL WD hdd repair tool and write unlock rom by pin reader (sometimes users need to use firmware unlock PCBs to unlock firmware area);
04: Backup important firmware modules;
05: Test firmware modules;
06: Repair module 190 and get repaired t2data file;
07: Load T2data to ram and set auto t2data loading to ram within disk image settings;
08: Data area was accessible and all lost data was recovered successfully.

Any question is welcome to sales[at]dolphindatalab.com.

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