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Wifi ic/module getting really hot after drop

Wifi ic/module getting really hot after drop

Hi, I really need some help with my Iphone 6 mainboard. After a drop on the floor, the display got damaged and I replaced it. Right after turning the iPhone back on, I noticed that the backside beneath the camera is getting a little too warm. I tested the Wifi and found out, that it doesn't show any networks even though it should. So I took a closer look at the ic itself: As soon as I connect the battery, the modul heats up and after 10 seconds it is so hot, that it hurts touching it. I tried to reflow the chip using a heatgun with a 600° celcius setting for about 30 seconds with aluminum foil protecting the other parts with no luck, it still does not work the way it should. I can use the iPhone until it tells me that the it needs to cool down and I am only able to make emergency calls.

Asked by: Guest | Views: 155
Total answers/comments: 2
Guest [Entry]

Hey Simon, did you ever find a fix for this? I have the same issue with a 6s, everything on the board looks good under a microscope but I don't even know where to begin with the multimeter!
Guest [Entry]

It’s a short inside the chip. Only fix is replace. You can dig into it and hope it’s a capacitor on the edge that can be replaced. Replacing ic will still result to no WiFi because the MAC address is stored in the storage