Why is my wifi grayed out?
Hey, I have an iphone 8 plus that has wifi grayed out, but will still connect to cellular. Any ideas? I have already reset it entirely and it still didn’t work.
2017年9月22日发售。型号有A1864,和A1897，可选GSM 和 CDMA 网络，存储有64GB和256GB，颜色有金色、银色和深空灰色。
That sounds like WI-FI chip is damaged or dry soldered.There have two factor that you can solve by this way.
Sometime WI-FI chip dry soldered throw over heat that remove PCB from board and re-hot WI-FI chip on 240 aprox 1 min then check most of the cases are solved.If the problem is still same remove the WI-FI chip then re-ball and fix.
If you have to change the WI-FI chip that need to unbind the Nand chip too.So,you need the Nand programmer to unbind WI-FI address or WI-FI address unlocked.If you have to know further this may help you.Have all process 7,7Plus and 8,8Plus have same process.