This DaHua DVR data recovery case study was for one DFL user from India. This is one formatted Dahua DVR hdd and the Indian user has used other CCTV DVR data recovery tools to scan the patient DVR hdd but get nothing or get videos with only 2MB, they are just some small video fragmented files.
When the user received this DVR patient HDD, the DVR brand is unknown. No one told the users about the DVR brand and then the user contacted Dolphin team for remote technique support.
Dolphin engineer checked the hex data of the DVR patient HDD and analyzed the data carefully and found out the dvr brand is DaHua DVR.
The patient DVR hdd was formatted and the file system info was overwritten and for this kind of DaHua DVR video recovery cases, users need to select ‘Deep Analysis’ within the Dolphin DVR recovery software and start the video fragments analysis, collection and restruction and finally all lost videos will be listed properly.
With the help of Dolphin engineers, the Indian client had got all his lost videos back.
Any question is welcome to [email protected] or add Dolphin Skype iD: dolphin.data.lab
Western Digital SMR HDD firmware repair and data recovery cases are more and more common for data recovery engineers worldwide.
Among all cases, the most common cases are the following two types:
1, Firmware module 190 failure;
2, Physical head damage.
As for module 190 failure, it has the following situations:
Module 190 is good but couldn’t be loaded to ram properly;
Module 190 is corruped due to bad sectors within the module LBA range or overlap nodes or vacant nodes or error nodes generated;
As for Physical head damage, users need to swap heads to continue and can try head and platter swap tools here.
To ensure users can get the best WD SMR hdd data recovery success rate, Dolphin team have added the unique WD SMR HDD Firmware module 190 manager with the following detailed functions:
Import Module 190 and Manage
Extract the T2 Data(190 core nodes)
Original Nodes List
Scanned Nodes List
List Nodes by Original Order
List Nodes by Node Tree
List Nodes by Start LBA
SIT Repair
Search Correct Blocks Auto
Search and Replace
Search Error Nodes
Search Overlap Nodes
TIS Check
Vacant Nodes Count
Overlap Nodes Count
Tree Root Node Number Check
Test Current Nodes
Test All Nodes
Test Tree
Test Nodes by SMRZONE
Scan Lost Nodes
Repair Selected Nodes
Delete Selected Nodes
Delete Error Nodes
Delete Nodes with Same Start LBA
Delete Nodes with Same END LBA
Repair Vacant Nodes with Scanned Nodes
Caculate Valid Data from Selected Nodes
Zerofill Bad Sectors within The Module
Load 190/T2 auto for data recovery
Users can get above solutions within DFL-DDP data recovery tool.
Any question is welcome to [email protected] or add Dolphin Skype ID: dolphin.data.lab
Please be kindly informed that Dolphin Data Lab Headquarter will be closed for traditional Dragon Boat Festival holiday from tomorrow, June 3 to June 5. And resume to office on Monday, June 6 2022.
During this 3 day holiday, product delivery service and remote technical support service are not available, but will be handed right after holiday. Sorry for inconvenience caused.
Thank you for your attention.
About Dragon Boat Festival
The Dragon Boat Festival is a popular event in China, also it is a national holiday. It takes place on the fifth day of fifth month of the Chinese lunar calendar. This year it falls on June 3, Friday.
This celebration has been in existence for over 2000 years. What do people do to celebrate this Festival? We usually eat rice dumplings, drink realgar wine, and race dragon boats. Other activities includes hanging mugwort and calamus, taking long walks, writing spells and wearing perfumed medicine bags.
Dragon boat racing is the most popular part of this Festival. Boats are decorated to look like dragons. They can be up to 65 feet long. They can hold up to 22 people. Paddlers in the boat race train to paddle very quickly. They also train to paddle in sync with other team members. The team who wins the race believes they will receive good luck.
Happy Holiday, wish all Dolphin users good luck in 2022!
Dolphin CCTV DVR data recovery software supports very successful video data recovery from DJI UAV video recording systems.
The following is the detailed support list:
DJI P3
DJI P3X
DJI P3XW
DJI P4
DJI Packet
DJI Air2s Short
DJI Air2s Long
DJI OSMO ACTIOR
Other DJI UAV models…
If the DJI model is listed, it is very easy to select the model, use fast analysis or deep analysis to get the lost videos easily. If the DJI model is not listed, for example, users get new brands of DJI UAV video recorders, users can still use Dolphin DVR unique video recovery solution, select unknown video recorder, extract sample videos, add sample videos and then use deep analysis to recover all lost/deleted videos.
Users can check how to use Dolphin DVR to recover lost deleted videos from different video recorders.
Please note: Dolphin DVR has one-week version, full version or customized version, users can email to us for details.
Dolphin CCTV DVR data recovery software is all-in-one video recovery solution containing four software modules: CCTV DVR recovery module, digital camera recovery module, video recorder recovery module and video repair module.
Any question is welcome to [email protected] or add Dolphin Skype ID: dolphin.data.lab
Dolphin team has further improved and upgraded the existing CCTV DVR data recovery software-Dolphin DVR to latest version 3.41.
In this new CCTV DVR data recovery software, users can find the following new video recovery features:
Non-Standard CCTV DVR drive video recovery is added. Standard CCTV DVR drive sector size is 512k, 1024, 2048, 4096, etc, but non-standard sector sizes are 520, 528, etc. All other tools don’t support this non-standard sector size but Dolphin DVR is good at it;
MeiCoy DVR system is added；
FHDRH_FTVT DVR system is added;
New model of Panasonic HC-WX1M is added for direct video recovery;
JingSun law enforcement video recorder is added to support;
Kodak digital camera recovery is added;
SONY ILCE-1 digital camera recovery is added;
SONY ILCE_7RM4 digital camera recovery is added;
NIKO D7100, NIKO Z6, NIKO Z7 digital cameras recovery is added;
GoPro Hero10 digital camera recovery is added;
Panasonic DMC-G7 digital camera recovery is added;
Lingdu H264 driving recorder recovery is added;
Panasonic DMC-FZ2500 digital camera recovery is added;
Panasonic AG_GH4,DC_GH6 digital camera recovery is added;
GoPro Hero6, GoPro Hero7 digital cameras recovery is added;
ALEXA camera video recovery is added;
NIKON D810 video recovery is added;
DJ UAV osmo_actior video recovery is added;
Canon EOS 7D MARK II,EOS 600D,EOS R5,EOS RP digital camera is added;
Zhifayihao law enforcement video recorder recovery is improved;
Diyixianchang car driving recorder recovery is improved;
SONY-ILCE-A7S3 video recovery is improved;
BlackMagic digital camera is improved;
…
More new…
More and more data recovery engineers and digital forensic investigators are using Dolphin DVR with happiness and success and this CCTV DVR data recovery tool will be more and more powerful too.
Any question is welcome to [email protected] or add Dolphin Skype ID: dolphin.data.lab
This is one successful data recovery case study for one Dolphin user from Mexico who is using DFL PCIe data recovery express.recharge version.
Patient HDD ID:
Model : ST2000LM010-1RA174
Family: Rosewood A5
Serial : ZDZBNJP7
Firmware : SDM1
Capacity : 3907029168 (1863.02GB)
Sector size : 4096
Heads number : 4
FW info : Obtained
FW version : RT0898.SDM1.CC0801.SDM1
FW package P/N : 100854747
FW ID : 00410701
FW creation date : 2019/05/26
FW creation time : 20:32:04
CFW version : RT08.SDM1.01556940.00410701
SFW1 version : 8975
Modules list : Obtained
Modules number : 55
Failure Symptoms：
Long time to get ready
Many LBA read error in COM terminal
Data area is not accessed
Due to the firmware area lock, users need to backup rom first, and then generate unlock rom, write unlock rom, power off and on, send unlock key, backup important firmware modules, fix media cache issue, clear glist, confirm nglist entries, regenerate translator.
After above firmware fix, Dolphin engineer opened DFL-DDP data recovery software to get all lost data back by direct file extraction.
Any question is welcome to [email protected] or add Dolphin Skype iD: dolphin.data.lab
