Seagate ST4000NM0053 hdd repair and data recovery case is one common case in many data recovery labs, it is one Constellation ES 4TB 7200RPM SATA 6Gb/s 128 MB Cache 3.5 Inch Self Encrypting internal hard drive.
For this patient hard drive, users cannot access to the firmware area directly, if the firmware modules are corrupted, users cannot repair them directly.
To fix the ST4000NM0053 hard drive firmware corruption, users need to use DFL Seagate hdd firmware repair tool to backup the rom, generate and write unlock rom, send unlock key to access the firmware area.
Next users need to backup the important firmware modules and then confirm the Glist and NGlist entries.
Next users need to analyze the COM terminal messages and find out the failure types.
Next users just need to click several simple menus such as initialize by ID and tick several necessary options, clear media cache and then clear glist and reset smart and then regenerate translator.
Next users can write back original rom and start imaging or extract lost data directly using DFL DDP data recovery tool.
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