When I upgraded my phone from a V710 to E815
the orange light started blinking, other times it was off. What I discovered was that when I'm in the new "EV" mode of the phone, the light is off. When I'm in 1X mode, the light blinks -- so depending upon what mode the phone is in, that's when the light kicks in. On my 2002 X5 (I have a 2006 now) with my old CPT8000 phone, the orange indicator would come on when I was roaming.
Re: When I upgraded my phone from a V710 to E815
The new phones and new account numbers are being changed over to a cell phone roam and a data roaming, from EVDO and 1X. This is a constant search roam and is effecting bluetooth in BMW and other auto brand along with headsets. BMW is unaware of this problem which I have explained to no avail, I can't get through to techs who need to hear this, and the same with Verizon. We're on our own.