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More New WD Firmware are Uploaded to DFL Firmware Resources Center

With more and more firmware resources uploaded, our Resources Center is becoming more abundant and comprehensive for users to find their wanted firmware. Our constant efforts are only for the purpose of users’ convenience.

Western Digital is one of most top-rated hdd brands, so WD firmware resources are usually needed to many users. We are trying to offer more firmware resources for those universal hdds in present market, including WD 1672, 1698, 1692, 1820, 1823, 1852, 1960, 1945, 1959, etc. Read more

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Samsung PCB Swap To Restore Un-detected Samsung HDDs

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PCB damage of Samsung is one of the common failures we meet often, sometimes it doesn’t take a lot of time to find out the problem and restore the damaged hdd quickly if you can find out the failure cause quickly.

Today one client brought to us with one Samsung IDE HDD, when the HDD was powered on, it didn’t spin up and no response at all.

For such kind of problem, the first possible failure we can think of is on its PCB.

There’re usually two types Samsung PCB we meet often like below:

Type 1: Clamp PCB Read more

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How To Unlock Hitachi Hard Drives

For hard drives of all hdd brands, if they are encrypted by ATA password, they are usually full of exclamatory marks when you try to scan them by MHDD and users are warned about PWD telling the hdd is locked.

Due to the special design of hitachi hard drives which have three copies of firmware, copy 1, copy 2 and a backup copy of firmware. After the hard drive is encrypted, the working zones of firmware copies are protected, the NVRAM cannot be edited too. Anyway, the contents of the NVRAM are not affected and the factory firmware copy is not protected.

For Hitachi hard drives, they can be ready by connecting the PCB alone. Users need to have some tools to enter the firmware backup copy, read the password module within this copy and write it to the copy 1. If the password module of backup copy is damaged, users need to find a donor password module of the same series of hdd to write. After this module write, the password is usually removed. Read more

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Repair WD10EARS-HDD With Many Bad Sectors Of Green & Red Blocks by DFL-WDII HD Repair Tool

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This is another hdd repair bad sector repair case study, it’s one WD10EARS 1TB hdd. We wrote this case study not showing how powerful our tool is, but the most important is to demo how to diagnose one hdd in different methods and how to find out the solutions. A right way of thinking makes you more successful.

The user tried to use format with P-list to remove the bad sectors but after the format and scanned the hdd, there’re still a lot of bad sectors, full of green and read blocks. Read more

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Repair WD10EVDS-Dragafly2 HDD Being Very Slow With Many Regular Bad Sectors

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This data recovery technical document is one case study introducing how DFL-WDII hdd repair tool is used to repair damaged WD hdds which are working very slow with many regular bad sectors without clicking noises.

For this kind of problem, we usually consider it’s caused by the ID module or translator problem.

The hdd is one WD SATA 1TB hdd whose model is WD10EVDS-63U880. Luckily the hdd can reach readiness status.

The response was very slow and the hdd was detected after some time.

The user went to scan the HDD and found a lot of regular and typical bad sectors. Read more

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Find Out Bad Heads And Cut The Bad Heads With DFL-WDII HDD Repair Tool

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With DFL-WDII hdd repair tool, users can repair the bad sectors caused by bad heads, it’s easy to find out the damaged heads and cut the damaged heads so that the patient hdds can work again.

The following case study is to tell how to find out the bad heads and cut them.

Scan the hdd and users can find the intensive bad sectors;

Write Down the LBA value of the bad sectors, the starting LBA and ending LBA of the bad sectors;

Go to Menu Common–>CHS LBA Translate; Read more

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Bad Sector HDD Repair Manuals By DFL-WD II HDD Repair Tool

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To repair hard drive bad sectors, it requires the users to diagnose the hard drives first to find out what are the real causes of the bad sectors you are going to repair.

Bad Sector Types And Repair Solutions

  1. Bad sector type 1: logical bad sectors due to some logical errors and not many sectors, users can scan and add to plist or glist or merge from glist to plist;Then format with plist.
  2. Bad sector type 2: due to bad or downgraded head and the read is not stable, at this time, users need to cut heads and then perform format with plist;
  3. Bad sector type 3: If the bad sectors are caused by adaptive parameters, users can run ARCO 46 and then format with plist;
  4. Bad sector type 4: if it’s a small physical sctatch, users can use add to p-list by LBA or cut zones and then run format with plist.
  5. Bad sector type 5: if it’s due to dirty heads, usually clients need to do this way by cleaning the heads.
  6. Bad sector type 6: if there’re too many bad and irregular sectors, need to run arco optimize and 28 selftest. Read more
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Gift Month: Get High-speed USB Programmer Pro. For Free In Jan. 7-Feb. 07 2013

HDD Repair: Fixing Dead HDD PCB, Dead ROM Cases With The Help Of High-speed USB Programmer Pro.

Within 2013, Dolphin Data Lab is offering better-supported, better-functioned and better-priced hdd repair tools and data recovery tools to all engineers worldwide.

Dolphin Data Lab has named the first month of 2013-January as the gift month to all clients who are going to use DFL series data recovery tools. Within this month, we are offering the high-speed USB programmer Pro. for free if you buy DFL-DE data recovery tool and DFL-WDII hdd firmware repair tool. Read more

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Hard Drives Are Scratched Due To Insurfficient HDD Repair Operations And Judgement

When we are repairing our patient hard drives and recovering the data, it’s a must we have a correct analysis process and have one accurate conclusion on what’s wrong with the hard drives. Never do as you wonder when you are not sure of this one. Recently we have some clients who have shared with us some of their embarrassing experience before having our hdd repair tools and we are here sharing with all users so that you may avoid the same mistakes and destroy your data.

Let’s check the following failures and symptoms:

* The patient hard drives click each 3-4 seconds;
* The hard drives keeps busy and not ready; Read more

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New WD HDD Auto ROM Regeneration By DFL-WDII Version 2.4

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This document is to tell how to regenerate ROM automatically for New WD HDDs of PCB 1640, 1692, 1698 and other newer series without reading the traditional necessary SA ROM modules like modules 102-108, because these modules are already empty in these newer WD hdds and they are useless in helping regenerate the original ROM. Besides, the traditional method to regenerate ROM is limited to recognized hdds but for undetected hdds, the ROM cannot be generated at all. DFL-WDII hdd repair tool regenerates ROM for undetected hdds with the following simple steps: Read more

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