Like a computer, a simple restart can solve many common issues occurred in your smartphone. Due to daily usage and the installation of different apps may freeze your phone, a network error or a signal connection problem may arise, a restart may be a quick solution to solve all of these problems. If you want to restart your smartphone, by holding the power button for a few seconds. Ins some cases, holding down both the Power and Volume Up buttons for up to 20 seconds will restart your device. In most phones, holding down the power button for 15 to 30 seconds will shows the phone restart prompt. On Samsung devices you might need to hold down the volume-down button and power button for 7 seconds to restart the phone.
Sometimes due to high usage the physical power button may not work properly or stops working. Power button is the physical button to power off or restart your device. If it failed to restart it is a tough time for you to restart the phone manually. Here are some methods we have find to restart your smartphone with out your power button.
The soft reboot technique
Your phone may start to boot when you plug into a charging adapter, then you are lucky. But in most cases, it won’t start by itself. In an Android phone, plug the charging adapter into the socket, then press the volume up (+) key and the volume down (-) key together for about 20 seconds. Your device will start to boot.
By connecting to your computer
If you are having a laptop or a computer, connect the device with your computer using the data cable that came with your device. When a prompt appears, choose the data transmission option, and the device may restart now.
Restart from the boot menu
The boot menu or the recovery mode in smartphones helps to solve some of the common issues on phones. You can apply update from ADB (Android Debug Bridge), or from SD card. You can wipe data or factory reset, wipe cache partition, view recovery logs, or can run local tests using the boot menu. Use the proper combination of keys to enter the recovery mode, in new Samsung phones, press the power button and volume up at the same time until the Samsung logo appears. Then let go of both buttons. You are now in recovery mode. The default key combination for Android Recovery mode is to push and hold the Power and Volume Down buttons at the same time while the phone is off. Pressing down the volume up and volume down button together for 20 seconds also helps.
You can just connect to a charger, and wait for it to wake up on its own is the easiest solution. You can see the battery status as it starts charging.
