I did a 'restore as new from itunes' the other day, and I've noticed that I'm being prompted to 'sign in to icloud' at a few random times sinc then. The last time this happened was when I entered my text mesaging app. I just ignore it, either pressing cancel or going about my business. Why is this happening and how do I stop it? I'm using an iphone 6 and 8.1.2, and do use icloud to backup things. Thanks for any insights.