[The Solution for Seagate 7200.11 HDDs]

11 hours ago, jaclaz said:

For the loopback test you don't even need a hard disk, what has the presence or not of the card under the PCB to do with it?

The loopback test is made by connecting the Rx and Tx together and sending some data to the (virtual) COM port and see if these data is echoed back correctly in terminal, to make sure that the adapter and the setup is correct BEFORE even touching the hard disk.

It is a rare occasion (but it can happen) that the adapter is simply not working (DOA or Dead On Arrival), and as well even if the setup is usually very simple, it can happen that the device driver or however *soomething* in the OS is improperly set and makes it not functional. In your profile you state you are using a Windows 10, mybe that is part of the problem, ideally these instructions are (were) intended for a computer running XP (that has somehow a more direct/less complicated access to hardware) though it has also been used successfully with 7 (using a Terminal tool and - I believe - with no UAC and/or with Administrator credentials) so it may work fine in 10 or it may not.

jaclaz

 

So good news on this front. I found a little jumper to connect the rx and tx, that worked just fine in the loopback test so it leads me to believe it's probably one of the wires that came with the kit that connects to the usb to ttl adapter to the hard drive jumper pins that's probably faulty. I have hope yet!

[The Solution for Seagate 7200.11 HDDs]

So I just purchased http://www.ebay.com/itm/191972621801

I have a seagate stuck in the BSY mode. Now I'm attempting to do the loopback test however it isn't showing me any reply back for the RX at all. It's just blank. Would anyone have any suggestions would I'm doing wrong or missing here? I have the card stuck under the PCB just like the tutorial shows and everything but when it comes to the loopback test, it just doesn't want to co-operate.