In factory reset, how do I get out?

I guess you’re using the recovery mode to reset the device and you want to exit that screen. Simply use the volume up & down keys to navigate to “reboot phone” and press the power button once to select it.

Here is the complete steps to factory reset and exit recovery mode.

1. If your phone is on, power it off.
2. Hold down the Power and Volume up buttons simultaneously. You should see the Samsung logo followed by an "Installing system update" screen.
3. After a few seconds, you should see a "No command" message flashing on the screen. Wait 10 to 15 seconds at this screen and the device will enter recovery mode.
4. Use the Volume buttons to scroll through the menu and the power button to make a selection.
5. Highlight Wipe data/factory reset.
6. Press the Power button to select.
7. Highlight and select Yes to confirm the reset.
8. Once the reset is complete, you will be bounced back to the same recovery mode menu. Press the Power button to select Reboot system now.