Probs with 3G iphone

Discussion in 'Electronics' started by tudu, Nov 28, 2008.

  1. tudu

    tudu Hardcore MB Enthusiast

    Messages:
    1,203
    Joined:
    Jan 2, 2008
    Location:
    Plymouth, Devon
    Car:
    05 C200K Sport Edition (Kleemann)
    Since switching to the 3G iphone with the new software update, with HFP cradle the signal strength indicator displayed on comand only shows 3 bars plus when talking and receiving a call the volume is really low even though i have volume set at highest level.

    I suppose my question is, should my iphone be set o 3G while in the car, as when switched back to normal O2 setting everything seems to work okay.
     
  2. whitenemesis

    whitenemesis MB Club Veteran

    Messages:
    15,832
    Joined:
    May 7, 2007
    Car:
    Lexus RC300h F-Sport 2019
    I think you answered your own question there tudu!

    Can the iPhone be set to dual mode? i.e. the phone switches to the strongest signal?

    Either way, from what I remember MB systems don't support 3G
     
  3. Diesel Benz

    Diesel Benz Hardcore MB Enthusiast

    Messages:
    4,064
    Joined:
    Feb 3, 2006
    Location:
    Europe
    Car:
    222.132 & 221.122 & 213.050 & 906.633
    iPhone is connecting with BT HF profile to the car, the car should not be aware in this case if the phone is connecting through GSM, 3G, Wimax, WLAN or what ever you can make supporting phone calls.

    The phone itself may have a bug and set audio differently for 3G only versus dual mode.

    But did the OP actually set iPhone to "3G only mode" in the car? It would most often get a worse signal that way as 3G coverage is not as good as GSM. The phone may start gradually muting the audio too if the signal is too low. Changing to "O2 normal" should mean "dual mode" when the phone likely switches to GSM in the car. Note that you get some additional attenuation in the car when the car antenna is not used in BT HF mode. Even if you were using the iPhone docking station, the antenna coupling at the cradle is not equally good as the galvanic connection with a true cradle or a BT SAP adapter.
     
  4. OP
    OP
    tudu

    tudu Hardcore MB Enthusiast

    Messages:
    1,203
    Joined:
    Jan 2, 2008
    Location:
    Plymouth, Devon
    Car:
    05 C200K Sport Edition (Kleemann)
    Thanks. The iphone can be set to 3G manually, which is what i did. I have since switched it back to normal 02 mode and it works okay in the car i.e. strong signal volume okay. As stated guess 3G not supported by MB phone system.
     
  5. HughJarse

    HughJarse Hardcore MB Enthusiast

    Messages:
    1,035
    Joined:
    Sep 13, 2006
    Location:
    North East
    Car:
    c250
    Theres a new update this week - may help??
     
  6. Diesel Benz

    Diesel Benz Hardcore MB Enthusiast

    Messages:
    4,064
    Joined:
    Feb 3, 2006
    Location:
    Europe
    Car:
    222.132 & 221.122 & 213.050 & 906.633
    How would a SW update improve signal strength? Radio sensitivity is a HW issue, of course the user interface may show what ever it wants but the reception would not improve there.
     
  7. Diesel Benz

    Diesel Benz Hardcore MB Enthusiast

    Messages:
    4,064
    Joined:
    Feb 3, 2006
    Location:
    Europe
    Car:
    222.132 & 221.122 & 213.050 & 906.633
    The BT SAP device does not support 3G. You cannot be using the BT SAP adapter with an iPhone, the difference in behaviour cannot have anything to do with the MB phone system support (iPhone on the cradle could suffer from the car antenna gain on 2.1 GHz on older cars, not on new ones). With the BT HF adapter the car is not aware of you using 3G or something else.
     
  8. HughJarse

    HughJarse Hardcore MB Enthusiast

    Messages:
    1,035
    Joined:
    Sep 13, 2006
    Location:
    North East
    Car:
    c250
    Are you serious? :crazy: Do you seriously want me to answer that or was it a rhetorical question.
     
Tags:

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.