How Can I Reset My Android Phone Without Touchscreen?

How do I restart my Android phone if the touchscreen isn’t working?

Reboot Your Phone

Press and hold the Power button to display the power menu, then tap Restart if you’re able. If you’re unable to touch the screen to select the option, on most devices you can hold down the Power button for several seconds to switch off your phone.

How do I get my phone screen back to normal?

Swipe the screen to the left to get to the All tab. Scroll down until you locate the currently running home screen. Scroll down until you see the Clear Defaults button (Figure A). Tap Clear Defaults.
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To do this, follow these steps:

1. Tap the home button.
2. Select the home screen you want to use.
3. Tap Always (Figure B).