As stated in the title. My HTC 1 Mini is paired via bluetooth with my car, and a long time ago I found a setting on the phone that, as soon as wifi is turned off or is out of range, the phone's bluetooth switches on. This was very handy when I was working, as when I left the house in the morning and got into the car, the phone would, as if by magic, connect to the car without me doing anything. Didn't work the other way, mind, and when I got home I had to go into settings and turn wifi back on. Now retired, I don't need the facility any more, and it's more a nuisance than anything - but can I find the setting that enabled it in the first place??? No, I can't, looked everywhere, can't find it. It's presumably similar to the "Auto-switch to mobile network ... when Wi-Fi signal is weak" checkbox, which is one of the advanced wifi settings, but there's no parallel setting in the bluetooth options. I do very vaguely remember turning it on, but I just can't find it now, to turn it off. Any ideas anybody?