I am hoping for some help because I am stumped.
Here is the situation. 2013 E70/X5 with HiFi (676) system. Using the correct Technics harness for my vehicle, which bypasses the OEM amp. Helix is wired to the OEM bolts in the cargo area for power and ground. Helix is a V1 with the Bluetooth HEC installed.
When I plug the Helix into my laptop I hear the connection sound. Then I connect the Helix to the remote power wire from the harness, turn on vehicle and open the Helix DSP software. DSP is recognize by software and I press connect. Unit connects. Once I am in the software, the unit disconnects within approx. 10-15 seconds and will not reconnect.
If I close software, remove the USB, power down the helix and wait a bit, then repeat the steps described above, I get it to reconnect again, but after a few seconds it disconnects.
I have tried deleting and reloading the software several times. I have installed the USB drivers that come with the Helix software. Problem is consistent on two laptops.
Finally, the first time I connected I did a hard reset and got a message that the DSP needed to be updated and new software was installed. Since then I can't hard reset the DSP.