Should I do a factory reset after 5.0 OTA update?

[AzAssassin]

I would like to ask what some of you do/use to backup the stuff currently on your Nexus 5 before doing a factory reset? Obviously, I can just connect my phone to my computer via a USB cable and then save/move all of my pictures, music and downloaded files to my computer; but what about text message history, call history, and contacts? Can this be done directly via a Nexus 5 somehow? Or can this be done through your GMail account? Or is there an aftermarket app that can be used to backup text history, call history, and contacts? Is there even a way to completely backup/save the text message and call history from your phone to be added back to the phone after doing a factory reset?

It seems as though GMail/Google will/should add your contacts after signing in on the phone with your GMail login info. after doing a factory reset; but, even then, it seems like GMail doesn't always add every contact that had previously been added to the phone/Gmail account. So, I'm hoping there's a way to thoroughly backup pretty much everything currently on my phone.

Sorry for the long post. Thanks in advance to anyone who replies!

 

[mkhilario]

Helium app

 

[tonyr6]

Don't bother if you think it will improve battery life which it won't unless you want to reconfigure all your apps again.

 

[scott keel]

factory reset nexus 5 lollipop.....all the way through and now No command signal. then it starts up and goes right back to lollipop with all the same settings as if nothing happened.

 

[mkhilario]

Did you do it via settings menu? Try doing it via the hard keys in recovery mode. It might work.