What does a symbol like a letter in in a white square mean

[Katyp]

I have just got this phone and in the top right hand corner is a symbol like a letter N in a white square. Tried google search but can't find explanation...can anyone enlighten me? Thanks

 

[dontpanicbobby]

Wi-Fi/Wireless connection maybe?

 

[mikedt]

Sounds like the NFC mode is on notification.

 

[chinugarnaik9]

I think you are talking about fingerprint.