My WD Hard disk 2TB fell down and now either not recognised or recognised but with 0 Byte. Can I Get data back by just replace the cylender ( 4 Disc insight ) How can I make a copy of firmware of this drive and transfer to another drive of same capacity. Thanks for your time and interest in this post. Hitendra
Hard drives are like fine wine glasses, if you drop them they will break. Firmware is not going to fix this. I highly do not recommend that you open this up to replace any platters (cylinders). If the data is really important there are places that can recover the data for you, but it is not cheap
Its my experience even I should prefix BAD, that once a drive gone its gone forever. Once I paid money to recover data but my bad I lost money as well. In single platter drive i made some experiment to replace platter and succeeded. This time there is 4 platters and that is the issue. Just one platter mismatch and data can not be recoverable.
It's likely that the only way to recover your data is going to a specialized service. They'd have to get the platters out and insert them into a compatible HDD (probably the exact same model), backup whatever is salvageable. Obviously the cost is at least the host drive+manual labor, which can be quite expensive as well. Typically on drives that are used for home computers nothing should be irreplaceable. Your important documents, photos, work etc. should be always backed up to the cloud or some other drive. Apps, the OS, the app settings, games, are all easily replaceable.
data recovery is about $350 hour only large companies and government agency's can afford it....this is why u always make backups else were just for situations like this.