How do I get into cell phone safe mode?

pu1. In the case of Samsung phones, the mobile carrier logo appears when the power is turned off and turned on again, and if you keep pressing the key to lower the volume, you will enter safe mode. When you enter the safe mode, the bottom of the screen says safe mode

2017-11-29

OK

pu2. In the case of Samsung mobile phones, you can do as you say, and in the case of LG mobile phones, you can keep pressing the key to lower the volume when the carrier logo appears when you turn it on
Or, when the power is on, press and hold the power button to enter the safe mode when the power off menu appears

2017-11-29

OK