Fast and Easy Fix Weak WiFi Signal Solution for iPhone 4

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It’s been a while since I posted hardware fixes and solutions. Here’s one of the most common issue affecting the iPhone 4 – weak WiFi signal, and this solution will take less than 5 minutes.

My older post on fixing iPhone 4’s audio compiler chip issue proves to be popular and many were able to fix it themselves. Good job guys! Anyway, the above photo shows a WiFi signal within my work area. We actually have 2 WiFi routers setup, but obviously it’s not picking up the other one.

Warning: Proceed with caution. I am not responsible for any potential damage this may cause to your iPhone.

Editor's note: learn more by reading our ebook on starting your own iPhone repair & unlock business

First of all, remove the back cover of your iPhone 4. As usual, check YouTube or for tutorials. Switch off your iPhone. Before you proceed with this repair, be sure to check that screws for mounting the logic board are not missing. The same issue can be fixed with by putting in or replacing them with the correct screws.

With a soldering gun, soldering iron, a wire and steady hands, simply make a jumper as shown in the photo above. Put on the back cover.

What do you know? Second WiFi router is now detected, and even the signal is showing full strength! Look at the time stamp, it only took 3 minutes!

Good luck and as usual, don’t forget to leave your comments below. We can also fix other hardware related issue, see here.

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Fast and Easy Fix Weak WiFi Signal Solution for iPhone 4 was last modified: August 3rd, 2018 by Joe Wang

Comments & Discussion

  1. I was hoping you might have a fix for me,the little gold dot (shown in picture above) has been broken off of the main board of my iPhone 4 so putting the right screws in the wi-fi antenna does not help my phones weak wi-fi signal. Do you know of a way to make the connection with a jumper wire or another way to connect the main board with the tab with the gold dot on it broken off? I really need some help. Thank you.

    • Hi, I have the same problem with you. After i follow the guide and soldering the wire, the wifi signal really increase and works as normal but after I close the back cover……the signal weak again. So I remove the cover and solder again and again finally the gold dot broken off. May I know whether you have solve your wifi problem?

  2. hi. will it work for the iphone 5.
    i have the same issue, low wifi signal at about 4 meters away from the router…
    Brand new , ios 6.0.1, 32 gb.

  3. I would like to thank you, my iPhone 4 GSM (AT&T) had very weak wifi after a repair. The WiFi only worked in the same room as my Wireless Router. I tried getting a new wifi antenna, shield, and even new screws. I had nothing to lose so I tried this and it works! *knock on wood* I was so surprised and happy. Keep up the great work.

  4. Hello. Which 2 points exactly are you connecting? I'm assuming this was done with a GSM phone not CDMA since the pictures don't match my phone 100%. Can this be done with Verizon iPhone 4 (CDMA)? Thanks.

  5. Could be your case. We had bought a cheap case, turned out that it blocked the wifi signal. Remove your case and see if signal quality improves.

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