How to set your phone into one hand operation| small keyboard

The phones have become too complicated for the users since they have too much features. one hand operations make your keyboard smaller, it also affect the calculators and some app sizes. To customize or change your phone settings you need to,

How to boot a smartphone in to safe mode

 Safe mode in smart phones is similar to safe mode in Windows, where your system starts up without loading any third-party add-ons. Try to use any of this techniques in your android smart phone. Unfortunately there  is no standard method and depends on cellphone or  tablet device manufacturers or versions.