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Hi there, I have a problem with my iPhone 4S. I fixed the problem with the greyed out WiFi several times, but the problem comes back again and again. For the repair I used this guide: How to Fix iPhone 4S Wi-Fi Grayed Out Do you have any ideas what I can do? Thank you and greetings from Germany!

Hi, Reflows tend to work for a while or sometimes permanently, but if you have to keep reflowing it, then it is more than likely time to replace the wifi chip itself. :-)