Western Digital Hard Disk & Recovery Training

WESTERN DIGITAL HARD DISK REPAIR AND RECOVERY TRAINING ONLINE OFFLINE  

D6.1 HARD DISK STORAGE INTRODUCTION  

  • Introduction to storage , How data store in hard disk , Types of number systems, Binnary octal ,hex, ASCII values , Hexa values
  • MBR, boot secotor , drive structure
  • Hdd from inside :- Track, sector , cluster, head , zone etc

D6.2 WD HARD DISK INTRODUCTION (beginners)

  • Introduction to hard disk model no and types, families, pcb no , parts, DCM no
  • Booting process, Bios ROM , RAM ,SA, MBR, MFT , boot sector, NTFS
  • Hard disk board types , Pcb no , chip detail, MCU buffer, ROM, VCM
  • USB hard disk to sata conversion detail, jumper
  • Common problem due to firmware corruption
  • Short detail of wd hard disk firmware ,identify families from model no
  • Basic idea of different tools used for repair WD hard disk firmware
  • Wd marvel and MRT tools  basic used , read ROM and module

  D6.3 WD HDD ROM , MODULES & RAM IN DETAIL

  • WD ROM structure and modules detail 0A, 0B/20b 0D, 47, 4F
  • Head map 0A, detail, view, head depot
  • Rom directry 0B/20B SA location reading
  • Micro code version of ROM
  • View hexa code of all rom modules
  • Backup rom in SA detail
  • Load ROM in RAM

D6.4 WD SA MODULES IN DETAIL  

  • SA Module Structure and Analysis ( main, data, management , defect list backup )
    • Dir Module 01 Configuration Module 02 Zone Map 03, 04 analysis.
    • Overlays module 11 , 5c, 13, 10
    • ATA Modules.
    • Defect list modules plist, glist , tlist
    • Load Overly to RAM
    • Choose correct overly with compare ROM files.
    • Defect module  P-list 33. P-list Translator 31.
    • G-list 34. G-list translator 32. SA Defect list 35.
    • SA Translator (in Rom) 30. Track Defect List (T-list) 36.
    • Adaptives module analysis.
    • Modules 40, 41.  Module 49,4a.
    • SF Logs modules Exx in details.
    • Arco Log modules 20XX in details.
    • Key modules for data recovery
    • Common fault due to ROM & SA modules

D6.5 WD HDD REPAIR & DATA RECOVERY TOOLS USED

  • WD MARVEL ( used , connection, module read, write, rom etc)
  • MRT extractor  ( data extractor , copy data, clone hard disk)
  • MRT WD (  modules, rom , backup, repair option etc)
  • Wdr basic idea
  • DFL tools idea ( video )
  • PC3000 ( video )

D6.6 COMMON CASE STUDY OF WD HARD DISK

  • Undetected hard disk to repair
  • Wd slow responding hard disk repair
  • Continuous busy error solution
  • SED error solve
  • HDD RAM READING ERROR DEVICE ERROR DETECTED   “SED DRIVE LOCKED”
  • Recover head damage hard disk
  • Repair bad sector
  • Head depop Cut head
  • Fix clicking wd hdd
  • To see whether its head or firmware problems
  • Head map editing
  • Small scratched area remove
  • Translate , selfschan and servo calibration
  • Low level format
  • Fix adaptive problems
  • Regenerate plist
  • Wd self calibration
  • Hot swapping when require
  • 0 capacity show 02 module defective
  • Mr jog parameter copy area
  • Whole wd hard disk shown bad sector
  • Password protection
  • Factory firmware flashing steps