How do I find shorts with a multimeter?
like phyiscally. where do i put the probes exectly. anyone has a video? or can describe it to me?
this is really not a basic question. You will have to have a schematic and a board layout for your phone. Then you will have to know what component you are looking at. You compare the measurements to your schematic. You either measure the componets against ground or against other components. There is no general looking for short circuits. You have to look specifically for what the device (in your case your phone) does or does not do.