HT1937 What do I need to do if the antenna in my phone is not working?

Question

My iphone4 has recently been through a lot. I had to replace my screen not too long ago and I have been having problems with it for a few weeks now. But nothing as bad as my antenna not working. I have spent over $90 trying to get my phone unlocked because I thought it locked up (carrier lock). Well now that the phone is unlocked and I have a new SIM card the phone is still showing up searching/no service, but my service is fine in any other phone (including other iphones). I need help finding out what is wrong and how I can fix it.

Answer 1

The iPhone 4 antenna is on the speaker assembly of lower iPhone. Make sure that the antenna wire cap connector is perfectly pressed down and attached to its connector on the logic board. It can hover over and not be in the correct position, check it. While there, check and make sure the 4 silver metal legs of the antenna assembly are seated down properly. They slide below the midframe metal plate, and use spring action to contact the plate properly. Make sure that those legs are not bent or missing, one good one in proper position should give you reception. Also make sure the right lower screw which goes through the antenna is in place, not sure if this is important, but these are all the components of the antenna. A very important component of the "reception circuitry" is a small blue colored inductor on the logic board near where the antenna wire connects. Search on Web for blue inductor iPhone 4, if this is missing it can easily be bridged to regain service.