T-mobile UK sim in unlocked 3GS - poor 3G

Discussion in 'iPhone' started by JonLa, Nov 25, 2011.

  1. JonLa macrumors 6502

    Joined:
    Dec 22, 2009
    #1
    Hi folks,

    Just moved to Orange from o2, got my old 3GS unlocked and gave it to the wife. It's a recent refurb given to me via applecare after my old 3GS developed cracks. It worked okay on O2.

    So I put my wife's t-mobile SIM in from her android phone and at first it seemed to work fine, but now it's struggling to find a 3G signal.

    T-mobile have two carrier networks at the mo - we can see the T-Mobile Orange combined network, which should be the same quality as my 4s on Orange, but it frequently loses the network altogether, and never has 3G. The older separate t-mobile is there, sometimes with weak 3G, most often nothing. It seems to jump between the two networks, frequently losing all signal.

    I'm at a loss - it could be the SIM, which may have been scratched by her HTC android phone; it could be the 2-week old refurbished 3GS, it could be some problem at t-mobile's end stopping their customers accessing the Orange network at the moment, but there's nothing reported. My only other thought was that there needs to be a carrier settings update - except it was set up as new in iOS 5 with the t-mobile SIM in it, so it should have got the carrier automatically...
     
  2. CBX macrumors regular

    Joined:
    May 15, 2007
    #2
    I don't think you can use the Orange 3G signal yet as a T-Mobile user, only 2G at the moment (I think).

    Had a similar thing moving from unlocked 3G to a 4 with a TMobile sim. The 4 struggles to get a signal at all sometimes when the 3G had no problem :(
     
  3. JonLa thread starter macrumors 6502

    Joined:
    Dec 22, 2009
    #3
    Maybe that's it - Their website seems to imply that in certain areas they've already merged the networks fully and we certainly get T-Mobile Orange or Orange T-Mobile if we do a network scan. It's a shame because we she joined T-mobile her 3G was faster and better than my O2 iphone, but it's gradually declined to this point, and she'll be leaving as soon as she can.

    J
     

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