I have an iomega external hard drive. I swapped its power supply to the wireless router as that had an issue with wireless and forums said it might be a power supply issue. It is now working with the iomega 12V supply. However, I plugged the iomega into another supply, it didn't work. That supply was only 5v. Now the iomega doesn't work on any power supply. Blue light is flashing, sounds coming out, but not appearing on windows explorer.