Hello Friends!
As you may know, when heads cannot pass the test during the initialization process, Western Digital Marvell drive does not allow an access to the service and user areas. If one of the system heads is in good condition, you may edit the head map in RAM, get SA access and resolve the Slow Responding issue. If both system heads cannot write in the service area, they should be replaced.
But some new Western Digital drives can get the service area access even if system heads cannot write because they are weak, or have been taken from a donor and not fully compatible. Such heads can even read the user area but are usually extremely slow.
In this short article, we will review the method to bypass this issue and to read the data as fast as possible with the current heads of the device.
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