When my iPhone is locked, is it connected to Wifi or 3G?

Discussion in 'iPhone Tips, Help and Troubleshooting' started by askfareed, Feb 11, 2010.

  1. askfareed macrumors member

    Joined:
    Apr 14, 2009
    #1
    Hi,
    i have realised everytime my iphone is locked and i press any button for the screen to come up i see that it is connected to 3g and 1 second after when i slide to unlock it goes to wifi. So does this mean when my iphone is locked and i am receiving push emails it is using the 3g network, instead of my wifi network?
     
  2. UngratefulNinja macrumors 68000

    UngratefulNinja

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    May 9, 2009
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    Pennsylvania
  3. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #3
    Yes. It shuts off wifi to save on battery and turns it back on when you unlock it again.
     
  4. Shenaniganz08 macrumors 6502

    Joined:
    Jan 26, 2010
    #4
    I'll have to test this, but I'm pretty sure Wi-Fi stays on

    I was downloading a video over wi-fi ( using mxtube) and it seems like I was able to lock my phone without disturbing the two downloads I had going
     
  5. SpaceKitty macrumors 68040

    SpaceKitty

    Joined:
    Nov 9, 2008
    Location:
    Fort Collins Colorado
    #5
    It always goes back to edge or 3G.

    I found this out the hard way about two years ago when using an original iPhone on a prepaid sim. I was streaming a radio station on WiFi and went to sleep. When I woke up, I looked at the phone and the msic had ended hours before. What happened was the phone went to edge once it locked and used up $200 of credit in my prepaid account in just a few hours.

    There is an addon in Cydia for SBSettings that keeps the phone on WiFi when it sleeps just for this reason.
     
  6. -aggie- macrumors P6

    -aggie-

    Joined:
    Jun 19, 2009
    Location:
    Where bunnies are welcome.
    #6
    All I know is that the 3G symbol is on when I unlock and it immediately switches to wifi. The poster above's response about downloading only means that it switches to 3G and continues the download.

    I also "think" the refrigerator light goes off when I close the door. :)
     
  7. ngenerator macrumors 68000

    ngenerator

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    May 12, 2009
    Location:
    USG Ishimura
    #7
    Insomnia, FWIW:)
     
  8. ARF900 macrumors 65816

    ARF900

    Joined:
    Oct 30, 2009
    #8
    If your downloading something when it locks, it will stay connected to wifi, otherwise it will go to 3g.

    - From Experience
     
  9. leons macrumors 6502

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    Apr 22, 2009
    #9
    if its plugged in, does wifin still go off when locked?
     
  10. askfareed thread starter macrumors member

    Joined:
    Apr 14, 2009
    #10
    if i download that, will it waste more battery or not? Because right now i have push email on all the time and i get around 20 emails during the day, so would it be better if i left it like how it is, or install that so it will be connected to wifi while it's locked, so my emails come through a wifi connection? Also if i am not connected to wifi, will it go back to 3g with that addon installed?
     
  11. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #11
    Insomnia will eat up your battery like crazy.
    Even when it's not turned on it effects battery life bad.
     
  12. askfareed thread starter macrumors member

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    Apr 14, 2009
  13. leons macrumors 6502

    Joined:
    Apr 22, 2009
    #14
    When an Iphone is plugged into a charger, and goes to standby, does it shut off wifi like it does when on battery?
     
  14. rufus001 macrumors newbie

    Joined:
    Feb 19, 2011
    #15

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