My Samsung S4 is showing that my headphones are in but they are not. The headphone symbol is on my phone all the time. I can't answer my phone unless speaker is on or I have headphones in. I have tried putting earphones in and out but not working. I used to be an Iphone user. When I attempted to back up my phone, I am not sure if it backed it all up on my computer properly. It has been suggested that I do a factory restore but don;t want to lose everything. I think my numbers are saved on my phone and my calendar has been set up with the Samsung inbuilt one. Please help. I have had this phone for less than a year.