ADB won't see my BLU R1 HD

Hi. I've been trying for hours to get Helium backup to work with my R1 and it won't work. My G4 works fine with the same USB port and cable. When my G4 is plugged in, if I type adb devices, it shows up. The BLU phone does not show up. I've tried uninstalling and installing Helium in my computer and in the phone. I did a hard reset on the phone. I downloaded and installed the drivers Helium recommends and nothing. I simply can't make the R1 work. I've noticed a few people having the same problem in other forums but I haven't found a fix for it.

Anyone can give me some ideas? Thanks.