Undetected hdds can be caused by many reasons such as ROM damage, SA module damage, incompatible SA and ROM, head damage, etc. This case study is to teach the ROM and SA must match by having the same microcode.
The hdd was undetected due to ROM damage and let’s now analyze and follow some steps to fix it.
The first thing we could think was to backup the firmware modules when it’s possible, because whether it’s hdd repair or data recovery, we may use the modules in the operations later. Read more