Hello Sir & welcome to JustAnswer. I am happy to answer your question.
Go to the main Menu and then select the setting. From there you can get the option for the reset setting.
How do I get to the main menu. Please send me all the steps required and what is the icon I am looking for?
press Menu/Set button. then press down (flower mark) button now press right button (flash mark) then again press down button ( flower mark) for selecting the Reset option. When you press few times down button you get RESET option there . When you select the RESET press Right side button ( flash mark) and then select yes & press Menu/ Set.