After cloning about 30% of the drive, the read write head encountered a damage area on the platter and started to show multiple jumps in cloning and began to click. The read write head replacement was successful and the drive was imaged once again with head 1 activated to fill the gaps in our cloning process. This case then went into our clean room for read write head replacement so we could access head 1. Once this process completed, we had a complete image of the drive but with only one head and one side of the platter imaged. The jump spaces from extended read times was necessary during this process to avoid areas of the platters which may have been damaged by impact from the read write head. ![]() We attempted to make a sector by sector mirror image or clone of the hard drive with manually configured read times and jump sector spaces with head 1 disabled. This would explain why the hard drive was still recognized because head 0 is the only one that needs to be read to display the hard drive model and size from the System Area and report to the system BIOS of the computer. After our testing, we found head 1 was no longer functioning. ![]() In this case, the hard drive had two read write heads, head 0 and head 1. We tested the read write heads individually to pin point which read/write head was failing. Recently, we received a Toshiba clicking hard drive data recovery that would spin, initialize and report an ATA ready status however, when trying to access the data, the drive would click and hang the operating system during boot then display the ‘blue screen of death’.
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