How to disable the auto-lock option

To disable the auto-lock option, depending on the iOS version, follow the steps below:

iOS 10 and higher

1. Go to “Settings”

2. Choose “Display & Brightness”

3. Click on “Auto-Lock” and select "Never"

iOS 9.x and earlier

1. Go to “Settings” on your phone

2. Choose "General"

3. Scroll down to find the "Auto-Lock" option

4. Click on it and select "Never"

When iPhone is in “Low power mode”, it is not possible to set “Auto-Lock” to “Never”. You need first turn off “Low power mode”.