Description
DOV-6: WD ADVANCE FIRMWARE REPAIR CONCEP
1. WD HDD BASICS, BOOTING, MODEL IDENTIFY
- Identify hard disk model no, families, PCB no, parts, DCM no
- Chart of Wd hard disk families with micro code, and models,
- Hard disk board types, PCB no, chip detail, MCU buffer, ROM, VCM
- USB hard disk to sata conversion detail, jumper
- Locked and unlocked usb PCB of new model’s palmer, charger
- Booting process, Bios ROM, RAM, SA, MBR, MFT, boot sector, NTFS
- Common problem due to firmware corruption
- Basic idea of tools used for repair WD hard disk firmware
- Wd marvel and MRT tools basic used, read ROM and module
2. WD HDD ROM AND ROM MODULES DETAIL
- Basic idea of WD hard disk ROM firmware files, different extension
- Types of module, unique main micro modules, defect list
- ROM Modules files (ROM FILES 0A, 0B/20B, 30, 47, 0D, 4F)
- Head map 0A, detail, view, no of head, no of head depot, no in used
- Rom directory 0B/20B, SA location reading from platter
- Micro code version of ROM from module 5F
- Micro jog parameters location
- View hexa code of all rom modules
- Backup ROM in SA detail
- Load ROM in RAM
- Read and write ROM modules
3. WD HDD SERVICE AREA MODULES DETAIL
- SA Module Structure and Analysis Types of module (main, data, management, defect list backup modules)
- Dir Module 01 Configuration Module 02 Zone Map 03, 04 analysis.
- Overlays module 11, 5c, 13, 10
- ATA Modules
- Load Overly to RAM
- Choose correct overlay with compare ROM files.
- Defect list modules plist, glist, tlist
- 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.
- Adaptive 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
- Key module for data backup old I series and new royal series
- Read, write, repair, editing modules of wd hard disks
- Micro code firmware versions
4. WD FIRMWARE REPAIR TOOLS ( MRT, WD MARVEL )
- WD MARVEL (used, connection, module read, write, rom etc)
- MRTLAB WD (modules, rom, backup, repair option etc)
- MRT extractor (data extractor, copy data, clone hard disk
- wdr
5. WD CASE STUDY REPAIRING CONCEPT
- Undetected hard disk repair
- Wd slow responding hard disk repair
- Continuous busy error solution
- SED error solve
- Recover head damage hard disk
- Repair bad sector
- Head depop Cut head
- Fix clicking wd hdd (firmware)
- To see whether its head or firmware problems
- Head map editing
- Small scratched area remove concept
- Translate, self-scan and servo calibration
- Low level format
- Fix adaptive problems
- Regenerate plist
- Wd self-calibration
- Wd Hot swapping concept
- 0 capacity show 02 module defective
- Mr jog parameter copy area
- Whole wd hard disk shown bad sector
- Wd hard disk password removing
- Factory firmware flashing steps
