Hi Datacommando!
The reason i don't want to go to 2.8 at the moment is to avoid any further troubles that might add to the ones that i already have. Eventually i will go to 2.8, for sure.
As you said, my helix hardware (LT) was updated succesfully to v.2.7.1. from 2.30. That update process was done via the line 6 updater . That was the only thing that i clicked to update from 2.30 to 2.71, after installing HX Edit 2.71 and it's components.The unit was never connected to this computer before that.
I can listen to music , the pc recognize it but i can't open "HX edit" , because it says no device connected. Another thing is that i can't find helix control panel. With the Pod X3 and Pod HD you can find it under midi audio devices and configure sample rate etc. Now i can only access the helix control panel in my DAW, i don't know if that is normal or not. It's almost like the unit is being half recognized by the computer, because the updater detects it but not HX edit.
I already did a few reinstalls. I need to test another cable and maybe another usb port ( no hub of course ) but i already tested 2 of them. I don't have much free time for troubleshooting stuff but today finally i do. It sounds awesome and i can't wait to be able to edit my patches with HX edit and load my IR's.