Resolved Weak wifi/GPS signal on iPhone 3GS

Discussion in 'iPhone Tips, Help and Troubleshooting' started by umiwangu, Aug 1, 2012.

  1. umiwangu, Aug 1, 2012
    Last edited: Nov 29, 2012

    umiwangu macrumors 6502

    Joined:
    Sep 4, 2006
    Location:
    Malawi
    #1
    I bought a 16 GB iPhone 3GS (5.1.1) off of Craigslist, and afterwards, I realized it has very weak wifi reception and apparently can't get any GPS signal. Where my other iPhones (2x 3GS) often get 2-3/3 wifi bars, this one can't pick up anything. Standing outside in the open sky, the Maps app spends more than a minute trying to get a fix, and eventually it gave up.

    When I bought it, it had the iPad baseband on it, so I used Redsn0w to downgrade it to 05.13.04 and then unlocked it with Ultrasn0w.

    The 3, 4, & 5 serial numbers are 025, so the iPad firmware bricking issue isn't the problem.

    I searched a bit online and it seems like it's a known issue, but I haven't found any solutions yet. https://discussions.apple.com/thread/2724930?start=45&tstart=0

    Any ideas?
     
  2. umiwangu thread starter macrumors 6502

    Joined:
    Sep 4, 2006
    Location:
    Malawi
    #2
    I guess I'll probably just try to sell it then.
     
  3. luisadastwin macrumors regular

    luisadastwin

    Joined:
    Oct 9, 2010
    Location:
    Antas - Porto - Portugal - Europe
    #3
    Many people claim that the newer iOS stop the GPS from working any further in 3GS iPhones, mainly due to the BASEBAND version.

    So, I also tried to downgrade BASEBAND to an older version (05.13.04) using redsn0w in the latest version available (Version 0.9.15b3).

    I am also trying to check all the thing I have to do to make it work...

    You might want to check my story on this:

    http://forums.macrumors.com/showthread.php?t=1498532
     
  4. umiwangu thread starter macrumors 6502

    Joined:
    Sep 4, 2006
    Location:
    Malawi
    #4
    Hi Luis, thanks for the reply.

    I know that using the iPad baseband can cause certain versions of the 3GS to stop working, but it wasn't the case with this problem.

    I actually got it fixed a couple weeks ago. I went ahead and ordered a new wifi/gps antenna from eBay for a couple bucks and replaced it. After that, wifi and gps were working as normal.

    Perhaps this is your issue as well?

    Seth
     

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