How do I turn on or turn off the Galaxy A04e?
Press and hold the Side key for a few seconds to turn on the device. To turn it off, press and hold the Side key and then tap 'Power off.' Alternatively, open the notification panel, swipe down, and tap the power icon. To restart the device, tap 'Restart' instead of 'Power off.' (Page 14)
From the official Samsung Galaxy A04E SM-A042F Smartphone manual, page 14
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