There’re mainly four chips on a hard drive’s PCB and this article will give you an general idea of where they are and what they do.

This article tells how to use HD Doctor for Toshiba/Fujitsu to unlock Fujitsu hard drives. When you connect the locked Fujitsu hard drives to HD Doctor for Fujitsu, you will find that the field of LBA displays the drive as locked status by showing ‘HDD is locked.’ Note: For Fujitsu SATA drives, users are required to use dedicated IDA to SATA adapter to connect the drive with the HD Doctor’s IDE interface. After above step and preparation, you need to connect the command lines to the fujitsu drives as the picture indicates below and then you can enter the HD Doctor software operation interface, enter the Tcommod, power on the hd doctor you will receive one message from the command box ‘bootup from sa code’.

The myopic view of people in Nigeria and other developing West Africa countries regarding information handling and projection has made it difficult for advanced data solution. A typical computer user or organization attitude towards loss of data or information is very discouraging to enable any company come up at all to invest in standard data solution technology using advanced data recovery tools like SalvationData tools.

After acquiring Maxtor HDD, Seagate, as the largest manufacturer of HDD, however, doesn’t stop its steps to expand further and it gets now Samsung HDD at $1.375 billion in a cash-and-stock transaction.

When we are dealing with different computer forensic cases, we usually need to perform disk imaging. Disk imaging in computer forensics is different and much stricter than the common data copy and disk image, it must ensure the copied data is exactly the same with available simutaneous verification reports  such as Hash or MD5 verification codes. Computer forensic disk imaging is sector by sector image imaging all the contents of original disk including the location of the data, the file system, the lost or corrupted data, the hidden data, etc.

47: Missed data sync byte 48: Missed data sync after a split 49: Thermal asperity code 4A: Error didn’t repeat during dynamic sparing mini cert (usually refers to cases of log overflow) 4B: Error log full 4C: Controller stopped without a reason 4D: Error reassigned during dynamic sparing 4E: Block release timeout error 4F: Buffer ready error 50: Slipped sector (P-List) 51: Alternated sector (G-List) 52: Pad and fill defects 53: Hard error w/AT retries no error with full retries (instability) 54: Error during scratchfill 55: Bad alt dest ID info (all messages refer to Niwot addressing whenever alternative destination is mentioned) 56: Unable to find valid alt dest 57: Unable to delete alt dest 58: Too many defects per head 59: Too many defects per track 5A: Too many dynamic slips 5C: Unknown full slip failure 5E: Pad and fill defects 5F: Entire defect span was not found in User Defect List 60: No spares available (for reassignment of defective sectors, tracks, servo labels and any resources required for the current operation in general) 61: Write blocked w/o a reason 62: Write gate came on early 63: Write gate went off late 64: GC thermal sensor fault detected 65: Shock sensor fault detected 66: Attempt made to write at the wrong target location. 68: FW initiated disc sequencer reset 69: FW sequencer abort; split sector runaway RG 70: Bad disc resident cert/diag code 71: Unable to read system sectors code 72: Unable to read packwriter auto-stamp 73: Invalid defect info loaded 74: Invalid alt info table (usually refers to reserved defect lists) 88: Unable to learn good zap on track 89: Cylinder to be skipped out in loopback test 8A: Wedge slipped (track portion from sector xxx to sector yyy) 8B: Write ID failed 8C: Cylinder padded (physical coordinates apply to two cylinders at once – translator problems) 8D: Cylinder filled in 8E: Cylinder skipped out 8F: Max cylinder skips has been reached 90: Zapped burst 91: 2 consecutive zapped bursts 92: Too many zapped bursts on a track 93: Unable to zap – 2 consecutive bad bursts 94: Sumsquare of PES (one of adaptive parameters) on this track exceeds limit 95: Unable to zap bad burst 96: Too many position plus velocity threshold breaks 97: Zapped splice code 98: Encroachment code (any corruption of servo packets) 99: Max number of slipped tracks has been reached 9A: The slipped cyl requested does not exist. 9B: Head switch timeout error code A0: Preamp miscommunication A1: Reserve track defect list bad A2: Boot adaptives bad A3: Bad application code A4: Not enough sectors saved to the disc for adaptives A5: Application code checksum error A6: Application code not compatible CE: Cert test passed CF: Cert test failed ED: Attempt to write the user slip list but no valid list FB: Missing critical parameter FC: Command aborted (internal only) FD: R/w command rejected FE: Invalid address passed to Niwot FA: Un-initialized preamp code for new preamp interface FF: Unsupported code in the new preamp interface

Mumbai-March 21st: As one of the best equipped data recovery training center and data recovery services provider in Mumbai, Data Recovery Factory announced today one amazing free data recovery training and sharing program for all the indian local customers. All people who are interested in finding out the 5th generation data recovery tools and technologies and starting data recovery business can make best use of this opportunity and make something out

HDD and family model used here: Hitachi DK23BA including DK23BA-60, DK23BA-10 and DK23BA-20. The following information is useful for those who start Hitachi hdd repair or data recovery services .

Data recovery clean room engineers are now becoming more and more popular due to the cases data recovery companies receive are more and more physical damage involved. When your drives dropped from the desks, or your laptops fall to the floor or during some kind of movement, the drives suffering platter scratches, head damage, head sticken to the platter surface.

The problem can be caused by a short circuit on PCB or a spindle controller malfunction. One contact of the Master jumper is connected to the ground circuit, the other is linked through a resistor array to pin 59 of the SH6950 spindle controller chip, i.e. if the voltage at the contact is = 0V, the drive will act as Master, 5V – Slave.