Apple iOS devices (iPhone, iPad, iPod) lock Screen time is not a static or developer end settings but it’s a dynamic mean you can be modify it, if you want ever. By default, Apple gives adequate set up according to attention on devices battery life. Even though, essentials settings you can be adjust, for example, many users who want turn on screen/ not sleeping while device plugged-in. I don’t know, you are one of them, but probably it’s not possible, however, modify/change screen time out on iPhone, it’s possible.
By the way, if you change the screen auto-lock time. Then, it will not turn off until once you press power button. Even though, following guide through you can be modify iPhone auto lock screen time running in iOS 10.
Complete Guide to Change Screen Time Out on iPhone 7, 7 Plus – iOS 10.xx
Step 1. Head on Settings App on iPhone.
Step 2. Scroll down the screen and Choose Display & Brightness.
Step 3. You can see now Auto-Lock option.
Step 4. Tap on Auto-Lock and Select Never from (30 seconds, 1 minutes, 2 minutes, 3 minutes, 4 minutes, 5 minutes or Never.) then go back and press home button.
From now, your iPhone screen never happen auto lock. If you don’t like then you can be adjust auto lock time again as described in above steps.
Keep Remember – if you want save battery life, then, above type of auto-lock screen settings is very bad, because it takes much battery to keeps turned Phone screen light ON. So to prevent from it, you should keep auto-lock time1 or 2 minutes only.
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