Chosen Solution

Phone keeps shutting down and rebooting. Hasn’t been wet and battery is at 75 percent

Maybe it is an operating system issue, did your phone recently update and shut off prematurely? If it is hardware related you may check the connections between the battery and the phone or a logic board issue. Where there any other symptoms before this? Or possible causes, did you drop the phone? Was the phone left out in a hot car? Try to think of things that may have happened and that may help the diagnosis be a little more solid.