How to force your tablet screen to stay always awake

Grab your tablet and open Settings. Let's begin:

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  1. Go to Display -> Advanced and make sure the Sleep time is set to Never.
  2. Go back to the main Settings page, and in the search bar near the top of the screen, type Build number and tap the highlighted option as shown below:
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  3. Then, tap the Build number seven times. 
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  4. You'll be asked to enter the tablet's PIN or security pattern if any.
  5. Right after entering your PIN, use the search bar near the top to type and head to Developer options:
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  6. Turn on the switch to Stay awake:
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    Done!