Bluetooth headsets won't auto connect iPhone 13 (ios15)
Both my Sony WH-1000mx4 and WF-1000mx3 bluetooth will not auto connect when the devices are turn on to my iPhone 13, running on ios15. I tried unpairing the device and repairing it didn't won't. I tried restarting my iPhone, it helped. But the next time it didn't auto connect again. What is wrong?