What is a Soft Reset and what the Soft Reset does? The Soft Reset is the easiest reset to perform on a mobile phone. To Soft Reset a phone is to simply power cycle the device, to power it off and then to power it back on. The soft reset can actually solve many simple problems on mobile phones, especially when the phone has been on for a long period of time and has not been power cycled for a while.
1. So lets get started, please unlock your device and press and hold power button.
2. Once you will se this menu, you can release the power button.
3. Now choose Reboot or Reset option by tapping on it.
4. Just wait for your device to restart and you're done, good job.
Sometimes your phone is not responding due to some application or other problem, in this situation you can reboot your phone.
If you want to erase your all data from your phone then you should go with factory setting restore. This option will erase your all data.
The main reason to power them down daily would be to not waste energy.
Along side that it allows your RAM to flush itself as well as "rest" when fully off, this gives the RAM some extra longevity.
Diagnostics are often ran during the time of booting, so small errors are often automatically fixed.
And of course the obvious reason; for updates requiring reboots.