He hecho una consulta a BMW respecto a la conectividad con iPhone, y esto es parte de lo que me contestan. Lo cuelgo aquí por si a alguien le puede ayudar:
Recommended best practice WiFi iPhone settings:
Go to settings on your iPhone > WiFi. Tap your home WiFi name or address and set “Auto-Join” to OFF Also, set “Ask to Join Networks” to OFF. In addition, please put any other smart devices you may be carrying (such as an Apple Watch) in flight mode.
Phone Location:
The location of your iPhone is important because the WiFi signal from the bike only has a very short range. The bike’s WiFi is designed to only connect with a iPhone that is located in the immediate vicinity of the Connectivity/TFT display. Location options include the charging compartment and handlebar mounted RAM or similar system. Note that the iPhone cannot be kept in the side or top cases, nor should it be in a jacket, pant pocket, or tank bag as those locations result in disturbances.
Recommended Startup Sequence. When connecting a iPhone to the bike before a ride, the recommended procedure is as follows:
1) As a general practice restart the iPhone prior to each ride. This clears and closes any open apps, which reduces the potential for interference from any open/running apps. Sometimes there are many apps opened, which can potentially be a source of conflict for the WiFi signal or the operation of the iPhone with the bike. After restarting the iPhone, open any apps that will actually be needed during the ride.
2) Turn on the Connected App, set it up on the bike, and then turn on the bike.
3) Wait for the iPhone’s Bluetooth to connect to the bike. “Connecting to bike” will be indicated on the iPhone and when the bike is connected it will then indicate “connected to
bike” on the iPhone screen. This normally takes about 10 - 15 seconds.
4) After the Bluetooth is connected, wait for the bike’s WiFi to connect to the iPhone. When it starts to connect, "Starting Map Mode" appears on the iPhone's screen, typically with a "Spinning Circle" in the upper right quadrant on the iPhone's screen. If WiFi does not connect within approximately 10 - 15 seconds (consider that to be too slow), tap on the spinning circle. A small rectangular map icon will appear in its place. Tap on the rectangular icon and it will ask to "join WiFi.” Tap "Yes". Usually this will result in a connection in 5 - 10 seconds. If not, tap the spinning circle again, then tap the rectangular map icon when it appears and try to “join WiFi” again. This should not be needed more than once but if the connection feels too slow, repeat the process. We refer to this process as “forcing” the WiFi connection, but we find that it results in an improved connection which does not fail. A number of other customers been using this procedure and have reported that it works well and as described here.
5) We usually do not turn on and connect the headset to the bike until we can see the maps on the Connectivity/TFT display. The helmet icon will appear on the screen and you will hear a message saying “phone connected”.
6) The whole process normally takes only 1 - 2 minutes or so, but it sometimes varies. We never try and wait out the WiFi connection process if it appears to be too slow without trying to “force” the connection using the above mentioned procedure. In our experience, a slow connection is indicative of a weak connection, so we repeat the process until we get a faster connection as we feel necessary.
Ojo a lo descrito en negrita y fuente más grande, que es algo que yo siempre he hecho y que a mi me va bien y que ahora recomiendan incluso desde fábrica.
