Friend's Lumia 928 ran the first update fine, but that was the only update he received. Now he checks phone update in settings and it says it is up to date? And it is not 8.1??? Any help?
I think this is one of the phones that MS mentioned that do not proceed to update to 8.1
Wait for the fixed update to arrive. Fix is on the way!
Microsoft will supposedly update Windows Phone 8.1 Preview to fix 80188309 error | Windows Phone Central