I connected the power the wrong way or something and the result after a lot of digging is a fried +5 tvs diode. I removed the diode to see if this was a miracle cure, but nothing. I was gonna move on to the +12v diode but thought better.

onepcbsolution....seem to be able to software fix firmware swap. $45.
hdd-parts........do a hardware soldiering swap. $45
Both above are partner firms.

I have encountered "fzabkar" and his knowledge. Which is why i removed the diode, should i have done something else like wire up to power?

What i would like to find out is if having matched;
1. Model# ST2000DM001
2. Board# 100717520
3. F/W# CC27
Would i then using a CP2102 usb to hd connector via puTTy be able to tranfer firmware bios?

Any input would be appreciated.

A photo of pcb would help to advise



No,

you need a programmer or swap ROM.

Measure the zero-ohm resistors. The 5V pair will be open circuit.

http://www.users.on.net/~fzabkar/HDD/ST ... 01_TVS.jpg

Also measure the voltages at the SATA power pins. If you have been swapping cables between different PSUs "or something", then there is a real possibility that there will be 12V on the 5V pins.

http://pinouts.ru/Power/sata-power_pinout.shtml

_________________
A backup a day keeps DR away.

Photo is as fzabkar posted without 5v TVS.
I will have to get hold of `voltmeter` and `magnifying glass` for test.

colanco "you need a programmer or swap ROM."
programmer??? Is not a `USB 2.0 to TTL UART 5PIN CP2102 Module Serial Connector` via puTTy a programmer
swap ROM means this bios to a donor board. Yes?

fzabkar "there will be 12V on the 5V pins" you mean 12v stored in there via capacitors.

Sorry for lack of comprehension.
Electronics not a strong point.

open circuit -
An electric circuit through which current cannot flow because the path is broken or interrupted by an opening.
Got that one.

No,if you do not have tools ( PC3K , MRT ... )