Bluetooth Volume

[PROJUMPER]

Mercedes ML 280 --- 08plate

Hi, I have just upgraded my phone from a iPhone 7s to a iPhone 10, the bluetooth connected and paired, and I can make and call through the command speakers, I can hear the person I phoned, yet they can't hear me!
Any ideas?

 

[JohnArnoldBrown]

Is what you are saying worth hearing? I think the newer Bluetooth protocols have some sort of content assessment and filtering.

 

[Botus]

another ML owner with a new iPhone has issues with his BT (I thought it was a 7) it was OK before.... in the end he bought the latest merc gadget to plug in the arm rest and was happy all back to normal (was inside the last 2 weeks)

there are many versions... Merc never release a firmware update (which is criminal) they just make a newer unit and they magically work !!!