View Single Post
      11-25-2019, 08:14 PM   #11
jerry-t
Registered
0
Rep
4
Posts

Drives: 2016 X3; 2010 X3
Join Date: Mar 2019
Location: New Jersey

iTrader: (0)

Quote:
Originally Posted by IK6SPEED View Post
Quote:
Originally Posted by jerry-t View Post
Quote:
Originally Posted by IK6SPEED View Post
Quote:
Originally Posted by jerry-t View Post
Not sure if this is the same issue...

I have a 2016 X3. Have always had problems getting Pandora to work. It will occasionally (sometimes frequently) stop. I notice also that the phone cycles between charging and not charging. I've tried numerous cables - Apple and 3rd party. Nothing seems to work. I occasionally get a message on my iPhone 7 Plus, "Can only connect to one accessory at a time." I've taken it to the dealership. Updated software. Nothing works. I'm wondering if having the phone connected via Bluetooth and USB might be causing the problem.

BMW Genius Line - absolutely no help.

In short, for a great vehicle, BMW tech is pretty poor.
The issue is the large screen iPhone 7 you are using. It wants more amps than USB can provide.

.5 amps doesn't cut it with the higher demands of the phone for power.

This has been discussed many times if you would have searched.
I've seen that explanation before - but as an electrical engineer - and knowing a little something about Ohms Law - I can tell you the "math" does work. Too much calculus to get into here. But thanks for trying!
You failed as an electrical engineer then.

It's very simple 3rd grade level multiplication. No Calculus required.

Power = amp x voltage

2.5 watts = .5 amps x 5 vdc

And iPhones, especially large screens, need more than 2.5 Watts.

The Apple USB power adapters are 5 Watts (or 1.0 amp)

But thanks for sharing, err, showing your "true knowledge".

It's not "too much calculus to get into". It's simple math.

And absolutely NOTHING to do with Ohms Law.
Wow! Don't know where to begin! Not worth the energy on a such a loser!!
Appreciate 0