On an iPhone screen setting it cuts off if left idle for a few seconds how do I reset it to stop it cutting out for upto sat 2 minutes?

On an iPhone screen setting it cuts off if left idle for a few seconds how do I reset it to stop it cutting out for upto sat 2 minutes?

Go to Settings then Display & Brightness.

Change the auto-lock time to whatever you want.

(That's for phones running the present version of iOS - it may be somewhere else on older ones).

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