blacktango

Hello, some days ago my external Medion HDDrive2Go 1TB wasn't recongnized by windows and it kept clicking, trying to spin, stopping and all from the beggining again. So I opened the case and realized that the drive was the barracuda 7200.11. I connected it as an internal drive too having the same symptoms and not recognized by the bios. My question is could the problem be caused by a bricked firmware? I don't have an adapter to ttl so I'm gonna buy one too. So is this one suitable for the disk?