Originally Posted by rcarnes911

Being unrooted and stock does not mean the software installed correctly a factory reset should have been the first thing you tried that is why that option is there

Sent from my Nexus 7 using Tapatalk 2

Actually, that option is there so that you can remove all user data in the event you need to sell it or give it to someone else. Doing a wipe/reset is a major pain, especially on an unrooted device with no TiBU to restore apps and data. If it happens again I will consider it, but so far it appears to be working fine. Haven't seen NFC started since that one night. I had another phone on the nightstand that may have been why NFC initiated.

Originally Posted by simms22

turn off nfc if youre not using it. main settings, wireless and networks, more, disable nfc. if youre rooted, and dont plan on usimng nfc, id delete it and tags from /system/app/. i delete it after every rom flash since i dont use it. thats one less thing that wants to suck my battery juice dry.

NFS does *not* drain battery, unless you scan a tag, etc..
in other words, if its enabled, and but you dont use it, there is not battery used.

Originally Posted by wavrunrx

NFS does *not* drain battery, unless you scan a tag, etc..
in other words, if its enabled, and but you dont use it, there is not battery used.

Like I said, when I discovered this latest rundown and looked at the batt stats, NFC service was responsible for 60% of the usage. The phone was simply sitting on my nightstand after reading a Play Books book, so I have no idea what I might have done to turn NFC services on or why my task killer did not kill it while it sat idle all night. My only guess is that the proximity of another smartphone or TV remote set it off, but I don't really know. I moved both items and it hasn't happened again since.