Hello there! I have the same problem with my iPhone 11. This past Saturday I went to a local Sprint store and they replaced the original 2 weeks old device for a brand new one....guess what? Same issue. Here is my problem (mentioned in this post): When wireless charging the device on my car, it gets so hot that it freezes my internet connection and the screen starts dimming down to almost a total dark... I have been searching for answers however nobody seems to reported the same issue until I came across your post.