Show iPhone as non-iPhone on network I want to give my older iPhone to someone else, but they only want to use it as a basic phone, and use data only over WiFi, not over the 3G / LTE network.

However, when their SIM card is put into my phone, the network charges me automatically for a data plan.

How do I show a iPhone as a non-smartphone to the network?
Go to Settings > Date > Mobile Data and change to Off. This will stop you using the 3G / LTE network, while letting you download data over WiFi.