Brightness automatically changes by itself
Hi
just recently bought the special edition iphone 8 plus in Red with black front.
keep noticing my brightness keeps changing from high to almost low by itself i would change it to high and with in 10 minutes its back to low. i want it to stay on high. i have true tone turned off.
How do i keep my phone brightness on High setting???
Thanks
Jon
iPhone 8 Plus, iOS 11.3