data recovery service

Hard Disk Data Recovery Services

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Hard Disk Failure

Broadly speaking a hard disk can fail in four ways that will lead to a potential loss of data:

  1. Firmware Corruption / Damage to the firmware zone
  2. Electronic Failure
  3. Mechanical Failure
  4. Logical Corruption

Combinations of these four types of failure are also possible. Whether the data on the hard disk is recoverable or not depends on exactly what has happened to the disk and how bad the damage is. Please note that over time, all hard disks will develop bad sectors which can lead to data loss and drive inaccessibility.


1. Firmware Corruption / Damage to the firmware zone

Explantion: Hard disk firmware is the software code that controls, and is embedded in, the physical hard drive hardware. If the firmware of a hard disk becomes corrupted or unreadable the computer is often unable to correctly interact with the hard disk. Frequently the data on the disk is fully recoverable once the drive has been repaired and reprogrammed.

Firmware failures - How to diagnose: Common Symptoms

  • The hard disk will spin up when powered on, but be incorrectly recognised / not recognised at all by the computer
  • The hard disk will spin up & be recognised correctly by the computer but the system will then hang during the boot process

Actions to take

  • Recovering data from hard drives with firmware failure requires low level reprogramming / manipulation of the hard drive. It is not possible for a PC repair shop to do this. Data Clinic have our own specialist equipment that allows us to successfully recover data from hard drives with firmware faults.

What is the cause of firmware corruption? We believe that one cause of damage to the firmware zone on modern drives is the use of fluid bearing technology in the spindle motor assembly (PDF)


A common slimline Maxtor hard disk. Go to our Maxtor hard disk problems and fault diagnosis page

A Western Digital WD400BB hard disk. Read our Problems and fault diagnosis on Western Digital WD hard disks
Fujitsu hard disk
A 40Gb Fujitsu MPG3409AT drive. The MPG series all suffer from controller board related problems. Read our Fujitsu MPG / MPF series hard disk problems page.

 

2. Electronic Failure

Explanation: Electronic failure usually relates to problems on the controller board of the actual hard disk. The computer may suffer a power spike or electrical surge that knocks out the controller board on the hard disk making it undetectable to the BIOS.

Electrical failures - How to diagnose: Common Symptom

  • The hard disk will not spin up when the drive is powered on - it will appear dead & not be recognised by the computer

Actions to take

  • Data Clinic can recover data from all types of electrical hard drive failure.

Although electronic failures can happen to any type of hard disk, we find that Quantum Fireball drives are particularly susceptible to power spikes and quite often it's possible to see visible electrical burn damage around one of the chips on the controller board. Usually, the data on the hard disk has not suffered any damage and a 100% data recovery is possible.


The Seagate Barracuda (above) and the rubber sleeved 'U' series hard disks have unique failure symptoms. Fortunately, the data is often recoverable. Read our data recovery from Seagate section for further information

A Quantum Fireball hard disk drive. Typically, electrical faults on these drives will result in one of the larger chips showing signs of burn damage. Read our Quantum hard disk failure page.

Popular drives that seem to develop controller board problems: Quantum Fireball series, Western Digital drives, Maxtor drives, Fujitsu MPG and MPF series. If you have a laptop hard disk - please also refer to our laptop hard disks problems page.


3. Mechanical Failure

Mechanical hard disk failures are those which develop on components internal to the hard disk itself. Often as soon as an internal component goes faulty the data on the hard disk will become inaccessible.

Mechanical failures - How to diagnose: Common Symptoms

  • When powered on, the hard drive will immediately begin to make a regular ticking or clicking sound

Actions to take

  • Recovering data from hard drives with mechanical failure requires the drive to be worked on in a clean room as the drive has to be taken apart and investigated in lab conditions. Data Clinic have a fully equiped Class 100 clean room which we use to recover drives with mechanical problems.

Note: We see many laptop hard drives with mechanical failure. Fortunately the data is often recoverable. For specific symptoms, please read our laptop hard disk failures page

Do not be tempted to open a hard disk if you suspect a mechanical fault: there is nothing you will be able to do and you will contaminate the internal clean air environment. There is also a good chance that during this process you will destroy any chance that we have of successfully recovering the data.

Quantum Fireball AS hard disk drive
The Quantum 'AS' series drive can develop nasty mechanical problems. Take a look at our Quantum Fireball AS hard disk failure page for more.

The IBM Travelstar (now made by Hitachi) is a typical laptop hard disk. All laptop drives can develop mechanical failure - click our laptop data recovery page for further details

An IBM Deskstar hard disk. A very common drive that it prone to developing mechanical faults. Read our IBM Deskstar hard disk problems page


4. Logical Errors

Often the easiest and the most difficult problems to deal with, logical errors can range from simple things such as an invalid entry in a file allocation table to truly horrific problems such as the corruption and loss of the file system on a severely fragmented drive.

Logical errors are different to the electrical and mechanical problems above as there is usually nothing 'physically' wrong with the disk, just the information on it.

Microsoft Windows Based Problems: Four common types of logical failure are shown below - please click which one applies to you or call us on 0870 140 2525

Logical errors can also be tackled with various software tools you can buy off the net, but be warned - if you are intending to run a fix utility on your disk you can very easily make recoverable data unrecoverable. This is especially true when running ScanDisk and Chkdsk on a damaged hard drive.

 

Data Recovery
Telephone Numbers

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NEW Enquiries - Please call
0870 140 2525

EXISTING Customers - Please call
0161 761 9140


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The benefits of sending your data recovery to Data Clinic...

Best-in-Class Data Recovery
Our advanced techniques and methodologies allow us to perform complex hard drive recoveries, even on extremely damaged hard drives. We have an onsite Class 100 cleanroom.

Recovery Options
In-Lab or On-Site recovery services, plus a variety of turnaround times to suit your requirements.

Success Rate
Data Clinic's data recovery success rate is proven by a consistent track record of recovering data after failed recovery attempts by other data recovery companies.

Free Advice and Consultation
Data Clinic Data Recovery provides free consultation to determine the best course of action without requiring any further obligation or financial commitment.

Fixed Cost
Data Clinic will quote you an exact price for the recovery of your data before you send your job to us. This will be the price we charge you. There are no hidden extras.

Customer Services
Data Clinic dedicated Customer Service team will keep you informed of the progress of your job and are available 7 days a week.

 

 

 

Laptop Problems: Please see our specific section on recovering data from laptop hard disks

Apple Mac Problems: Please see our specific section on Mac data recovery

RAID Problems: Please see our specific section on RAID data recovery

Linux Problems: Please see our specific section on Linux data recovery

UNIX Problems: Please see our specific section on UNIX (Sun Solaris) data recovery

SCSI hard drive problems: Please see our specific section on Common types of SCSI hard disk drive failure

Click here for our MAIN DATA RECOVERY SECTION

Click here for our MAIN DATA RECOVERY index

 

 

 

Telephone Numbers

CALL US

NEW Enquiries - Please call
0870 140 2525

EXISTING Customers - Please call
0870 7424 008


UK Wide Collection

 

 

 

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