I am using an old iPhone 4s with iOS 9.3.5 to listen to audio books.
For as long as the iPhone is connected to a charger this works without problems (even when the display goes dark). However, when I want to use the iPhone without charger iBooks stops reading the book to me as soon as the display gets dark.
I could find out how to stop this annoying behavior which makes it impossible to use the iPhone on battery only for listening to audio books. Can anybody here help me?
For as long as the iPhone is connected to a charger this works without problems (even when the display goes dark). However, when I want to use the iPhone without charger iBooks stops reading the book to me as soon as the display gets dark.
I could find out how to stop this annoying behavior which makes it impossible to use the iPhone on battery only for listening to audio books. Can anybody here help me?