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
