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Hello, I got an iPhone 6S, replaced battery nad screen on it. But I got a problem with WiFi and bluetooth - the bluetooth keeps turning off randomly (I use my airpods, than the blueetooth shuts off, the icon in control menu shows that the bluetooth was disabled in settings and I can’t toggle it - there is a loading icon in settings, Also the wifi gets really slow when the bluetooth shuts down, I belive that this is some 2.4 GHz module problem, but I’m not sure. I found out that some users had the same problem, but there was no information about solving this problem. Can you help me please?
If Bluetooth becomes greyed out in the settings the problem will be the Wi-Fi chip. This usually happens after a drop, it will need to be removed and re-balled.