iPhone 4 Bluetooth with Citroen C4 Picasso carkit / headset

Question

Level 1

4 points

iPhone 4 Bluetooth with Citroen C4 Picasso carkit / headset

The iPhone 4 (iOS 4.3.3) is paired with the original C4 Picasso 2009 telephone/navigation system (version Rneg_D_R29a_R29.01).

This works fine, but after the initial pair/connect, the car headset system can never reconnect with the iPhone. This is completely reproducible: when the car starts, the car headset software tries to find the iPhone, but unless I switch off, and then switch on the Bluetooth function on the iPhone, the car does not find the phone (nor will the iPhone find the paired car "headset" in this case).

When I do toggle the iPhone bluetooth function, the car headset reconnects immediately. Needless to say, it is very awkward to toggle the iPhone Bluetooth every time I get into the car (especially since this involves multiple strokes and clicks. I'd love to have a Bluetooth toggle on my home screen, but that is another issue...)

It looks to me the iPhone's Bluetooth stack is not completely in order. I have used several cell phones with this car (non-Apple), and have never experienced a problem.

Any ideas welcome, but most off all Apple needs to fix the iOS4 Bluetooth stack.

Wilm

iPhone 4, iOS 4.3, iOS 4.3.3

Posted on May 25, 2011 1:28 AM

Reply

Answer 1

Jun 3, 2011 6:33 AM in response to wboerhout

I have two cars with Parrot hands free in them and have the exact same problem as you have.

I also have a Bluetooth headset so I have noticed a behaviour that even more strengthens the theory about some BT stack problems. As long as the phone is connected to a Bluetooth device there is no problem. I can have the headset connected for 10 hours without any problems and when I get into the car it connects instantly (100% reproducibility). But if I turn off the headset and only wait for 2-3minutes I must do a disable/enable of the iPhones BT function to get it to connect to my car. So it can not be anything else than some fault in the BT stack. It seems to be some problem when the BT stack only listens to radio noise.

But this don't seems to hapend on all iPhones, my description of the problem above is on my new iPhone 4 (2 months old) I also have an older iPhone 4 (10 months) and it never fails to connect to my cars. So I guess it is some difference in some noise threshold that makes some iPhones to work fine and some to have there Bluetooth stack crashed but I hope Apple fixes this soon as I agree with you it is really annoying to have to turn the Bluetooth on and off each time I get in and out of the car.

Reply