WiFi IC heating up and no WiFi detected?

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iPhone 6s Plus

2015년 9월 25일 출시. Model A1687/A1634. 수리는 이전 모델과 유사하며 스크류 드라이버 및 비집는 도구가 필요합니다. GSM 또는 CDMA / 6, 64, 또는 128GB / 은색, 금색, 스페이스 그레이 및 로즈 골드로 제공하였습니다.

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Anoric @anoric

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게시일: 2019년 6월 19일

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WiFi IC heating up and no WiFi detected?

Hello,

WiFi IC sometimes heats up so high that I get temperature warning and device shuts down. But after few restarts, phone works fine.. But it can’t detect any wifis.. I turn on wifi and it’s just searching… One time wifi was greyed out but I restored device and now it works but no wifis.. Bluetooth just loading so I can’t use bluetooth too, nothing found.. When I go to settings I have WiFi MAC Adress, it’s not N/A… So I am confused rn, if it’s IC problem, why it has wifi adress and why it sometimes work sometimes doesn’t.. Could antenna cause this problem? For example if it doesn’t work, IC struggle to get some signal and it’s gets too hot.. Idk really.. Thank everyone in advice for helping.

P.S Don’t tell me something like restore it again, take it to apple etc. because i already restored it few times and I don’t have apple store or tehnician with good tools and knowledge in my arena so I am on my own

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Ben @benjamen50 평판: 159.7k Mtwo Perform 11 191 368 · Answer 1 · 2019-06-19T04:05:10-07:00

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Ben @benjamen50

평판: 159.7k

Mtwo Perform

11

191

368

게시일: 2019년 6월 19일

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If it’s the Wi-Fi greying out as in it can’t be switched on in settings this is the Wi-Fi IC that is short-circuiting. For the ideal solution would be just a shorted capacitor near the wifi chip that powers the Wi-Fi IC but it is almost never that and it tends to be a component in the Wi-Fi chip (it is actually a chipset package comprised of smaller components inside the chip).

If a component has failed in the Wi-Fi chip, it would need to be replaced and the NAND flash chip which is basically like the hard drive on a phone will also need to be re-programmed as the Wi-Fi MAC address is also stored on the nand flash chip which must match or else the phone will not boot past apple logo.

In short, when it comes to these types of Wi-Fi chip failures they tend to cost too much to fix or are along the lines of being too much hassle to get it replaced. I would recommend getting another phone in this case.

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Another possibility would be to remove the wifi IC if one can live with just 3/4G data connection and no WiFi and BT, insulate with some conformal coating and everything else I believe should be working fine. I would have no major problem without WiFi on the phone, just a minor nuisance.

arbaman 의 2019년 6월 19일

Wi-Fi is not greyed out but as I told, sometimes it heats up when you turn on wifi sometimes not..

Yes there isn't a probem to use phone without wifi but there is a problem when it comes to stable connection, downloading apps and similar things

Anoric 의 2019년 6월 19일

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