Poor WiFi Signal reception iPhone 4

Why does my iPhone 4 have a poor WiFi signal reception after my repair?

We’ve gotten this question quite a few times, “I replaced the screen on my iPhone 4. Everything works but now I have poor a poor WiFi signal reception. What’s wrong?”

What could be causing poor WiFi signal reception  in my iPhone 4?

Take a look at the photo below.

  1. The EMI shield that covers all the cables need to be on. If you have neglected to put back the shield cover then that will be part of the poor wifi signal reception problem.
  2. The top center screw which happens to be the longer of other 5 screws needs to be present. That screw not only holds down the EMI shield but a little silver connector on the EMI shield to the logic board.

If that screw or the little silver connector is missing, you will have a weak or poor WiFi signal reception on your iPhone 4.

Poor WiFi Signal reception iPhone 4 Photo

6 Replies to “Poor WiFi Signal reception iPhone 4”

  1. Have you connected the wifi antenna? this is the thin black wire on top of the loudspeaker assembly. Its held in under the L shape bracket under the battery connector

  2. it is not the loudspeaker atenna that is only for cell reception. i promise you this more than likely you lost the silver connector.

  3. Is there a method to replace the silver connector ? because i have lost mine i have only the screw ?

  4. where can i get that small part from mine is missing on the phone are there any ways around it like for example foil?

  5. That metal part does not connect the wifi antenna, it is isolated from the screw and antenna. It connects the logic board to the case

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