Cleaning a phone with anything containing isopropyl alcohol will destroy your oleophobic coating ! Only use a dry cloth, or in extreme circumstances a lightly moist cloth.
#9 it's not true in LCD screens. Lowering brightness can save battery but displaying black color on LCD drain little more power then white color. It can be true on CRT monitors and LED displays.
If you are scared that you will sleep through your alarm because it isn’t loud enough, just put your phone in a cup or a mug. That way the sound of the alarm will be even louder.
Cleaning a phone with anything containing isopropyl alcohol will destroy your oleophobic coating ! Only use a dry cloth, or in extreme circumstances a lightly moist cloth.
#9 it's not true in LCD screens. Lowering brightness can save battery but displaying black color on LCD drain little more power then white color. It can be true on CRT monitors and LED displays.
Only use a dry cloth, or in extreme circumstances a lightly moist cloth.