Okay, I've contacted OnePCBSolution.com, see if they can help. Hopefully I can buy a replacement board from them (exact match) and mail them my current one so they can do the donor transfer.
Here's the reply from OnePCBSolution:
I think if the drive can be detected, it should at least give you a prompt in hyperterminal. I’m not confident replacing the board will make any difference, but we can provide a board for you if you want to give it a shot.
For this board, we need you to ship the dead board to us first, and then we have to clone the firmware from your board onto a new board. The reason is that the firmware of every single board of this model holds some drive specific data, and this unique data has to be copied over to ensure compatibility. The total cost including the board and firmware transfer is $49.99.
Alternatively, if you do not want to mail the dead circuit board to us, we can provide you with instructions on how to transfer the firmware yourself. This involves soldering and de-soldering an 8-pinned ROM chip (SO8).
If you would like to proceed, just let me know which option you would prefer.
Will give it a shot, beats the last resort if it works out.
Edited by Confused07, 26 November 2013 - 09:26 PM.