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March 12, 2015
My iPhone 4S's wifi greyed out and could not connect to home wifi. The cellular part and bluetooth worked fine but not wifi. So I thought replacing the wifi antenna might fix it.
Also I thought while I have the phone opened, I might as well replace the battery at the same time.
The disassembly was fine. I took my time (approx 1 1/2 hr) carefully removing all the screws and parts needed to reach the wifi antenna. I had it laid out in a manner which I could remember where every parts/screw goes. The instructions were very helpful.
The re-assembly was much faster.
I was really nervous when I turned back on the iPhone but to my surprise, it turned on just fine, just as before! (I was afraid of possible short circuit or somehow not connecting something correctly.)
HOWEVER, the repair DID NOT fix my problem. The wifi antenna is still greyed out so this leads me to believe the problem is not the antenna itself, but with the wifi chip (which is all part of the logic board). I'm not going to replace that as this is a spare phone and I'm not spending any more money on this.
After taking my phone apart and putting it back together, I have no more fear of doing repairs myself.
My advice for anyone attempting this is to be sure to take your time, be organized, don't rush, and lots of patience.
wifi and bluetooth were not functioning properly
both were greyed out
went very well following the step by step directions and keeping the various screws and fasteners lined up and organized
Take the time necessary to follow the instructions very carefully and you will successfully get the the non functioning bluetooth and wifi curcuits working again.
Bluetooth and Wifi would not work.. reflow of the chip was necessary as there is a design flaw with the chip..or the assembly process
following the step by step was simple and easy well documented. Used a larger heat gun and thermally protected the other chips on the logic board
Take the time necessary and work precisely and the success and a fully functional IPhone 4s will be yours!
October 29, 2014
My problem was that my Wifi on my iphone 4S was grey... So i decided to open my Iphone 4S and replace the Wifi/Bluetooth antenna with a *new* one! From Ifixit! And it really works! It works like a charm! Really good! very good quality though !
The repair was really NOT difficult.. You just have to open your back case. And screw of the vises that you need to unvise. You do NOT need to take all the parts of.. Only the part where it's located in your phone.
My advice is to look very good what your doing! I mean by that... Be focused on your work you do on your phone.. Because if you miss one vise.. It could ruin your phone... So be patient, and put all the vises and parts on a small magnet board that you can purchase here on Ifixit!