iPhone 4 No signal or wifi after new screen

Discussion in 'iPhone Tips, Help and Troubleshooting' started by domm29, Jan 25, 2013.

  1. domm29 macrumors newbie

    Joined:
    Sep 28, 2012
    #1
    Hey all

    Ive been researching on google quite a bit and i cannot find a solution for my problem

    Basically ive took a few iphones apart 3G's 4's 4s's to know what im doing (well thought i did!)

    Iphone is locked to o2 , and had a cracked screen.

    Fitted the new one and now the iphone fired up fine and the 3g symbol was lit up but was constantly searching.

    I restored the iphone and now it wont get any signal or even pick up the wifi network when it had 5 bars before!

    Ive checked the little connector next to the battery connector and it appears fine but i have ordered a whole new speaker assembly with the antenna justo see if thats the problem.

    Any other help would be appriciated. thankyou
     
  2. funy macrumors member

    Joined:
    Jun 24, 2009
    #2
    iPhone 4 No signal or wifi after new screen

    Sounds odd, is it a genuine spare part? Nothing could have fallen in or got in there shorting it out?
     
  3. j.dstasio macrumors 6502

    j.dstasio

    Joined:
    Jun 9, 2009
    Location:
    South Jersey
    #3
    Check the screw at the top center of the wifi antenna (metal plate). There is a metal bushing type bit that clips on neat the screw hole. Sometimes that comes loose.
     
  4. j.dstasio macrumors 6502

    j.dstasio

    Joined:
    Jun 9, 2009
    Location:
    South Jersey
    #4
    I just re-read your post & realized you have to cell service. I thought it was just wifi. Check the inductor cool next to the antenna connector. It's blue. ImageUploadedByTapatalk 21359159345.435805.jpg
     
  5. domm29 thread starter macrumors newbie

    Joined:
    Sep 28, 2012
    #5
    Hey dstasio , i must have knocked it off as there are 2 solder points :mad:

    Would this also stop the wifi working ? and also can i just sold the 2 points together or would that not work , if so where do i get a new one , it doesnt half look tricky to solder!

    Thankyou everybody for your help!
     
  6. j.dstasio macrumors 6502

    j.dstasio

    Joined:
    Jun 9, 2009
    Location:
    South Jersey
    #6
    You can pick up an new on on ebay for a few bucks, or you can usually just solder a jumper between the two points if you are in a jam.
     
  7. domm29 thread starter macrumors newbie

    Joined:
    Sep 28, 2012
    #7
    Ok , thanks for your help , if i solder a jumper what would be the effects ? thanks
     
  8. domm29 thread starter macrumors newbie

    Joined:
    Sep 28, 2012
    #8
    Just so everybody knows , i ended up bridging the gap with some normal wire and solder , was very very tricky but it did the job i did knock off the blue inductor!
     

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