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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!