iPhone 3G - No GPS 3.1.3

Discussion in 'iPhone, iPod & iPad' started by MrDiesel, Sep 15, 2010.

  1. MrDiesel
    OP

    MrDiesel GBAtemp Regular

    Member
    175
    2
    Apr 21, 2010
    Belgium
    My PC :)
    Hi,

    I have an iPhone 3G running 3.1.3.

    When 4.1 was available, I updated it and tested GPS right away (without WiFi!). It worked perfectly! It was very very accurate. Because there is still no decent jailbreak for 4.1, I downgraded again to 3.1.3. I tested GPS again (with WiFi because without it doesn't work), and it was off by 2 - 3 km (around 1.5 miles).

    GPS Status (the app) reported "Good fix" on 4.1 and "Bad fix" on 3.1.3 at the exact same spot (my room). Okay, I know this is indoors, but why does 4.1 get a good fix and 3.1.3 don't?

    It's not because it's jailbroken, because I tested it before I jailbroke.

    I will now try 3.1.2. See if that helps. 4.0(.1) is not an option, because it's too slow.

    Hoping for help [​IMG]

    Edit:
    Forgot to mention that on 3.1.3 Navigon/TomTom doesn't work at all (no GPS fix). Didn't test on 4.1 though.
     
  2. alidsl

    alidsl I am now a lurker

    Member
    2,823
    279
    May 27, 2009
    Kanto - Pallet Town
    I don't know what might be causing the problems but my Dad always had problems with his 3Gs on 3.1.3 but all was fixed when 4.0 came out, and it worked on 3.1.2 aswell
     
  3. MrDiesel
    OP

    MrDiesel GBAtemp Regular

    Member
    175
    2
    Apr 21, 2010
    Belgium
    My PC :)
    I downgraded to 3.1.2 and GPS Status is still reporting "Bad Fix", but the horizontal accuracy is now 500M instead of 2000M with 3.1.3. It's also a bit more accurate on Google Maps now (the right street) + it works without WiFi. I can live with this until there's a jailbreak for 4.1 [​IMG]

    Thanks for the advice
     
  4. alidsl

    alidsl I am now a lurker

    Member
    2,823
    279
    May 27, 2009
    Kanto - Pallet Town
    Why don't you use 4.0?

    AFAIK 4.1 is useless for your phone
     
  5. MrDiesel
    OP

    MrDiesel GBAtemp Regular

    Member
    175
    2
    Apr 21, 2010
    Belgium
    My PC :)
    3.1.2 didn't solve the problem [​IMG]

    It's just as bad as 3.1.3 was.

    Isn't 4.0 running very slow on the 3G?
     
  6. Jamstruth

    Jamstruth Secondary Feline Anthropomorph

    Member
    3,456
    183
    Apr 23, 2009
    North East Scotland
    No reason for it to run any slower than 4.1 unless you have multi-tasking hacktivated. You can tweak that using backgrounder so 90% of your apps don't multitask but radio apps etc. do use it as they do things in the background.
     
  7. MrDiesel
    OP

    MrDiesel GBAtemp Regular

    Member
    175
    2
    Apr 21, 2010
    Belgium
    My PC :)
    4.0.1 doesn't run that much slower than 4.1 indeed. Even with multitasking I find it running quite good (disabled Spotlight). The GPS is worse now, lol... It's off by 15 miles. Before I downgraded to 4.0.1, I was on 4.1 where it was at the same spot as now (15 miles off)... I'll try another time when outside, probably because it uses trangulation now.