I understand perfectly how it feels when one's external hard disk fails. Thankfully, I had the support of my fellow forum members back then, although I still paid money for the recovery program.
spectre257 wrote...
Or just get another enclosure and transplant the hard drive yourself, unless you got warranty on the prebuilt external hdd.
Anyway, getting back on topic, there are two simple solutions which you could try to adopt at this point in time:
1) Change the USB cable. It may be faulty and this happens if the cable is used for a prolonged period... or so I think.
2) Change the casing of your hard disk, like what Spectre257 has suggested. Sometimes, the problem does not lie with the hard disk, but rather the enclosure.