iOS 5.1 Signal Down Goes UP

Discussion in 'iOS 5 and earlier' started by djinn, Apr 19, 2012.

  1. djinn macrumors 68000


    Oct 4, 2003
    Every since I upgraded to 5.1 I've noticed my signal bars will randomly go all the way to 1 bar to 5 bars. This happens when I wake up the phone.

    This is a Verizon iPhone. Steps I have done to troubleshoot are Reset Network Settings, Restored phone and setup as new, and did a *228 for the heck of it.

    Any suggestions? FWIW, I haven't had any dropped calls etc...
  2. Ashwood11 macrumors 65816

    Nov 10, 2010
  3. paul117 macrumors regular

    Feb 17, 2012
    it happens here in austrailia on telstra too... for me happens on my ipad and iphone 4 and iphone 4s since october.....
  4. trainguy77 macrumors 68040

    Nov 13, 2003
    I have got strange signal reporting issues since 5.1 as well. Sometimes it will say no service in the top right yet I can place and receive calls the whole time. It will stay at no service even though I know full well I have service.
  5. djinn thread starter macrumors 68000


    Oct 4, 2003
    So I activated field test mode and saved it so I can flip between dBm and signal bars. When it starts flipping out with signal bars I will switch to dBm. Even though signal bars show nothing my dBm is around -74 and stays around there.

    It appears there is some kind of issue with the bar reading.
  6. codyc1515 macrumors member

    Dec 31, 2008
    Same here on Vodafone New Zealand. I woke up this morning and noticed that the phone was on 2G then promptly changed to 3G. Looks to be some sort of diaplay issue.

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