When using iPhone and need the phone screen to be on for a long time, we can set the automatic lock time of iPhone to "Never".
Click iPhone Settings-Display & Brightness-Auto Lock, and then click the subsequent time to modify it.
##Can't change the screen auto-lock time? manage?
This situation is usually caused by turning on the "low power mode". After turning on this function, the automatic locking time will be forcibly adjusted to "30 seconds" by the system. It cannot be changed to allow the iPhone to have a longer standby time.
If you want to adjust the automatic lock time at this time, you need to go to iPhone Settings - Battery to turn off low power mode, and then go back to adjust it.
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