I'm having zero luck getting either my iPhone or MacBook Pro, or the Vitron ConnectApp (Running on the MacBook Pro) to see any Bluetooth signal from the Smartshunt 500 - and I've tried 2 different Smartshunts so far and have held my Apple devices inches away from the Smartshunt.
I've also tried the Smarthshunt with and without connecting a load to the 'System Minus'. Neither arrangement works. The Bluetooth light flashes but neither of my Apple devices sees any Bluetooth signal, nor does the Connect App see any Voctron device.
I haven't tried the Connect App with my iPhone, as I only want to connect via the Mac OS on my MacBook (and don't feel like experimenting using the iPhone under the circumstances).
I'm running OS 'Sierra' 10.12.6 on a 'early 2011 13" MacBook Pro. When I ran the Connect App, downloaded and installed from the Apple AppStore, it caused my computer to get so HOT that I couldn't touch it. So I trashed that app and downloaded the ConnectApp V5.8 from Victrons web site - which ran without issue other than that it also sees no Smartshunt device.
As my iPhone and MacBook are able to see each other's Bluetooth signals, I know their Bluetooth circuity is working. I also reset the Bluetooth in the MacBook and removed all options in preferences to use a Bluetooth mouse or keyboard.
I ordered a VE Direct Smart Bluetooth Dongle to see if that helps any.
Am I missing something?