Archive for the ‘Data Recovery’ Category

How to swap Seagate HDD’s PCB

December 30th, 2013 Comments off

Today we got a Seagate HDD of 7200.10 80G SATA which needed to do data recovery.
First, connect the HDD with computer, there is no feedback. Then touch the spindle motor and motor IC, there is no computer. Form the above situation, we can judge the HDD’s problem was only caused by PCB damaged. We can swap PCB to resolve the problem.

How to swap PCB:

1.  Found a donor PCB. (Visit
Match the board number which is etched on the PCB. The number is printed on the PCB’s back side (the side without chips), as the below photo:


2. Unscrewed the 2 PCB from HDD by using the star screw-driver.


3. Moved the damaged PCB’s Rom chip (BIOS) to the donor PCB. The 8pins (4 pins on each sides) with 25P05VP、25P10VP、25F512、25F1024、25F1024AN、SST25VF512、SST25VF010, etc. are the BIOS.




4. Put the donor PCB on the HDD, and then connect the HDD with computer. All data had been saved.

General Data Recovery Knowledges

February 21st, 2013 Comments off

1. The Frequently Reasons of Data Lose

a) Logically:

Be Protected;
Partition tab or MBR/DBR Broken;

b) Firmware:

Management Modules:Hard Disk couldn’t work or work well;
Data Modules:Data lose or disordered;

c) Physically:

PCB Problem(Print circuit board. Donor PCB can be found on;
Bad Sector;
Motor Broken;
Platter Scratch or out of alignment;
Head Broken or out of alignment;
Hard Disk over heated;
Other Reasons;

2. Hard Disk Defect Classification

Hard Disk Defect sector
Defect sector is the main defect in Hard Disk , it means the sectors couldn’t be read.
-ECC (error correct code) Error: Every Hard Disk write a data to a sector, it will produce a ECC code. The next time read this sector, the OS will compare the ECC, if it is not correct, it would show error sector.
-Sector ID / Address mark not found.


Storage medium damage (scratch);
Magnetic reduce (Frequently R/W);
Head problem / OS problem;

Servo Track Defect
Every track has one or some servo info, for head seek position and recognize the right track.
If one servo has problem, this track couldn’t be read.
Represent:Couldn’t partition / Format / even scan

3 Impossible Scope of Data Recovery

a) Logical problem

Data has been overwritten or zerofill

b) Firmware problem

Key modules corrupt but couldn’t find the donor FW;
P-list was broken and no backup file;

c) Physical problem

Strong scratch;
Platter overhead or break;
Head or PCB broken and no donor material;

RAID Data Recovery Service

November 27th, 2012 Comments off

RAID provides high performance to us, especially server users but it also brings us with much trouble. For example, we might be troubled to manage RAID partitions such as resizing or moving them. Luckily we could solve the problem quickly and easily with partition manager softwares or by adding hard disk. However, when we encounter data loss due to system crash, virus attack or power failure/surge, it will get serious because it causes greater loss if we recover data from raid at random, therefore, we should get help from professional raid recovery service, which is the first choice because of its quickness and safeness.

Types Of RAID failures:

To summarize, RAID server often fails as a result of the following situations and frequently, a combination of them :

  • Malfunctioned Controller
  • Raid rebuild error or volume reconstruction problem
  • Missing RAID partition
  • Multiple disk failure in off-line state resulting in loss of RAID volume
  • Wrong replacement of good disk element belonging to a working raid volume
  • Power Surge
  • Data Deletion or reformat
  • Virus Attack
  • Loss of RAID configuration settings or system registry
  • Inadvertent reconfiguration of RAID volume
  • Loss of RAID disk access after system or application upgrade

With larger drive capacities the odds of a drive failure during rebuild are not negligible. In that event, the difficulty of extracting data from a failed array must be considered. Only a RAID 1 (mirror) stores all data on each drive in the array. Although it may depend on the controller, some individual drives in a RAID 1 can be read as a single conventional drive; this means a damaged RAID 1 can often be easily recovered if at least one component drive is in working condition. If the damage is more severe, some or all data can often be recovered by professional data recovery specialists. However, other RAID levels (like RAID level 5) present much more formidable obstacles to data recovery.

When looking for a RAID data recovery service, it’s essential to find one with the technical expertise and tools required to restore your data. It’s also important to consider the security measures the company employs to protect your data.

One of the most important features to consider is the company’s clean room or clean benches (Make you own cleanbox cheap). Disks are sensitive. If a technician works on a hard disk in conditions below than the industry standard, it could cause further damage to the hardware. International Organization for Standardization ISO number that rates clean rooms based on the amount of contaminant particles per volume of air.

It’s important to find a data recovery service that has up-to-date software and tools for the best chance of data recovery. The best RAID data repair services will first evaluate your problem without charging you. The company should then supply you with a concrete estimate.

Because your business or personal data is stored on the RAID, it’s important to find a recovery service that will maintain a secure and private environment. This includes a facility that has around-the-clock security monitoring, locked clean rooms and background-tested employees. The best RAID data recovery services also are SSAE 16 certified, which is a third-party standard to measure companies’ privacy and security.

Recovery Capabilities
Since your RAID contains your important data, who better to entrust it to than an expert with years of experience. We found services that have a high success rate at recovering data lost to a variety of calamities. We also looked at how quickly, on average, these companies can repair a RAID.

Help & Support
If you use your RAID in a business setting, having it inoperable for even a day can translate into a large amount of lost revenue. To resolve the problem quickly, it’s important to choose a RAID data recovery service with 24/7 customer support to help you get your RAID to a service location and start the recovery attempt as soon as possible. It’s also essential that the company keep you updated regarding the progress of the recovery.

RAID Data Recovery Service Providers:

  • Secure Data Recovery
  • SalvageData
  • Gillware
  • Data Recovery Services
  • DTI Data
  • DataTech Labs
  • WeRecoverData
  • Kroll Ontrack

Although your RAID may have some serious problems, RAID recovery services are confident that they can assist you in recovering your data. If you need your RAID restored immediately, all of these companies have emergency recovery services that prioritize working on your array until the process is complete. Don’t try to recover data from a RAID on your own. If you make a mistake, you could potentially lose the data you are working to save. Instead, contact a RAID recovery service to restore your invaluable information.

Recovering Hard Drive From Broken Computer

November 25th, 2012 Comments off

Q: My computer broke and I have pictures of my dog that passed away and I need to recover them… The problem is that the computer does not turn on… I recently bought a laptop. Do you know how I can recover the pictures? Please Help…

If you find yourself facing a data recovery job, then you have probably forgotten the cardinal rule of computing: All hard drives eventually fail. And you didn’t back up your data, did you? We’ve been there—hey, everybody has to learn this lesson once. Now what?

Just kidding. Actually, the first thing to do is determine if it really is a hard-drive failure you’re confronting, and not one of the countless other equipment glitches that can cause a boot failure. If you have access to another computer, remove the failed hard drive from your sick PC, and hook it up as a secondary drive to the alternate computer. The easiest way to do this is through a USB universal drive adapter(Computer Cables Overview):


USB Universal Drive Adapters

It costs about $30 and is a good device to have around for all sorts of hard-drive diagnostics.

On a Mac, the process is a bit simpler. Use a FireWire cable to hook your nonworking Mac to a working Mac, then, “target boot” the nonworking machine by holding down the T key as you power it on. With either method, it’s possible that your failed hard drive will show up on your healthy computer and reveal its files, in which case your hard drive is probably fine, but your operating system needs to be reinstalled. (Don’t forget to offload your files before you do that.)

If your files don’t show up on the secondary computer, then you are at one of those pivotal moments in life when you find out how much your hard work and treasured memories are really worth to you. Depending on how your drive is damaged, an attempt to salvage your data can cost anywhere from a hundred dollars to several thousand. What’s more, the process can take days—and there is no guarantee that the money and time you invest will produce any results whatsoever.

Now that we’ve gone through the depressing task of properly setting your expectations, here’s the good news: Very often, the data on failed drives is recoverable. In fact, it’s surprising how resilient that information can be—just ask any corporate embezzler who thought he had deleted all the evidence from his PC, only to have it show up later in court. The comparison is apt, since the very same computer forensic tools that uncover digital misdeeds are the ones that can find your treasured family photos.

There are two ways that drives crash: Logical failure and mechanical failure. In a logical failure, the drive’s components are physically undamaged, but because of either accidental formatting or a corrupt file system, the drive is not able to find and navigate its own data. However, unless it has been overwritten, that data still exists on your drive.

A mechanical failure means that your drive has broken parts that are preventing it from working—busted drives often make a telltale clicking sound as they futilely attempt to access their files. If you hear that, your data may still be there, but you’re not getting it back without calling in the experts. And those experts make good money. Data recovery services from Kroll Ontrack, Seagate’s i365(Info: Cost of Seagate Data Recovery Service) and Iomega charge between $500 and $2500 to attempt to salvage data from either logical or mechanical disasters, depending on the severity of the situation. But if you are just dealing with a logical failure, you can get your files back on your own for far less.

We recently attempted a data recovery from the crashed drive 120 GB MacBook drive had spontaneously given up the ghost. We removed the drive from her laptop, then used our USB drive adapter to hook it up to a desktop computer for diagnosis. We didn’t hear any sounds that indicated a truly dead drive, so our first step was to download the free demo diagnostic tool at Prosoft Engineering to check what might be salvageable. Many companies offer demos that will scan your drive and give you a pretty good idea of what’s recoverable before you lay down money to buy their software.

Once the assessment indicated we’d get good results, we used Prosoft’s Data Rescue II software ($99), which is tailored for the Mac OS and Mac-formatted drives. There are far more options for PC owners, including Prosoft’s Data Rescue PC ($99), as well as Ontrack EasyRecovery DataRecovery ($199) and RecoverMyFiles ($60) from GetData.

Most of these recovery products work in a similar way. Install the software, select the defective drive as your source and choose a destination folder to receive the data. (Make sure your recovery drive has enough space for the contents of your failed drive.) Then be prepared to wait, and wait. A full scan and recovery of our 120 GB drive took four days, and a larger drive could take longer.

Recovering a hard drive is a bit like getting back a stolen car—you’ll be happy to have your files back, but the results could be messy. No data recovery program will return your files to you in exactly the condition you originally kept them. These programs are designed to essentially do a data dump from your problem drive to a new drive. Files will be organized by type (JPEG images will be in one folder, Word documents in some other folder, MPEG movies in another) and your songs and photos will be mixed with random sound and image files from your computer’s system folder.

Additionally, the names of all your files will have been changed to various alphanumeric sequences, such as IMG1039.jpg or So be prepared to settle in for a long weekend of sifting through and renaming your files. Oh, and while you’re at it, now’s a good time to buy that backup drive.

iPhone Data Recovery

November 18th, 2012 Comments off

iphonedatarecovery 1. About iPhone Data Recovery

iPhones can suffer from glitches, which can result in the phone crashing and needing to be restored. When this occurs, the restore process will wipe the device clean of any data. Data can be restored, however, and the process is simple through iTunes.

Each time the user syncs his iPhone with iTunes, the device will back up unless the backup process is interrupted.

The backup process will create a disk image of all personal data on the device. When a restored iPhone is connected, iTunes will ask if the user wants to restore using this disk image.

The following data will be backed up and ready to restore in the event of a crash: contacts, settings, applications, text messages, email messages, recent and missed call lists, any mobile Safari favorites, notes saved, set alarm and most preferences.

Unlike failures in other phones, the iPhone’s syncing process (and the regular backup) prevents the loss of data.

Prevent the need to restore by only installing applications through the App Store. Unauthorized applications through other means can cause the phone to fail or need to be restored in some cases.

Never interrupt the backup process. You never know when you may need the backup you just interrupted.

2. How to Recover iPhone Data

If you lose the data on your iPhone, all is not lost. Thanks to some free programs and Apple, there is a good chance you can recover your data. These steps walk you through the process.

  1. Refrain from copying more files onto your iPhone when you think you have lost files. You need to run a scan to see whether your files are still there so you can recover them.
  2. Download a program that is capable of searching the files on the hard drive of your iPhone. These programs are available for free on the Internet. Once such program is recover4All Pro.
  3. Allow the program to run so that it can scan and recover all of your files. This can take up to 3 hours because it scans the entire hard drive of the iPhone.
  4. Connect your iPhone to the computer you usually use to sync them if the above method does not work.
  5. Hit the Summery tab in iTunes, and click Restore.
  6. Select, when requested, the option that offers to restore your previous settings. Because your files will be backed up on your computer, your data should be restored.