Why my Iphone 5 is not display the software update IOS 8?

[iMore Question]

In setting /General/Software Update
It show 'checking for update'.
but nothing come.Why?
Now my phone is IOS 7.1.2
I want to reach IOS 8

 

[nikkisharif]

I'm not sure. Maybe it's not available OTA for some reason. Connect to iTunes & see if it comes up that way.