I just used up all my 4GB of cellular data for this month. This had never happen before. In the pass, the most I had ever used was about 2GB.
When I check my data usage detail, I found there are some over 100MB usage everyday around 5-7am, while I was sleeping.
I need to know what is causing this and how to stop it.
I am using iPhone 7 on ios 11.1.2
Best answer by tortorlo2017
I been turning off my cellular data at night, so far nothing unusual happened.