So my new PSU killed 3 drives, 2 seagate (One 2TB and one 3TB) and a toshiba 2.5". Both the seagate drives havet he same revision of PCB which I thought that it would be the PCBs that are dead because its impossible to have 3 drives have a mechanical failure at the same exact time, and they weren't powering at all. So I bought a new PCB and put it in and finally the drive comes back to life. You can read about what originally happened on my old post here: http://www.tomshardware.com/answers/id-3057068/detect-hdds-ssd-optical-drive-msi-z77a-g45.html
Anyway now the drive is running and detected in windows but the firmware that is on it is for the 1tb model (Model: ST1000DM003, Serial: S1DBG83N, Firmware: CC44)
Now my understanding is that the firmware can just be updated for the 2tb model (image here: note the different serial and FW etc.)
The stock firmware for my drives dead PCB was CC27 and upon looking up the serial on Seagates download search tool it comes up with CC29 which is my guess to be a newer version of CC27. I download the file and inside the .zip is some linux related folder, a firmware folder that is EMPTY, and a bootable iso folder, which has a ISO and a .exe to install said iso onto a usb. I did this and it boots into the USB fine, but comes up with FAIL when i try to flash it? I have never done this before so maybe i'm wrong and I can only use a 2TB PCB (I didn't know this PCB was for a 1TB hdd, i just bought one that had the same revision.) So am I doing something wrong or is it not possible to install the 2TB FW over the 1TB FW. Sorry if my explaining is confusing. Thanks in advance.
Photo of the iso failing to install or what ever.