Hi, I would like to know if there is a way fo force iPhone iOS 12 to use mobile data, I have a plan with 80GB a month, and in some instances I can't download or do updates because the iOS will only update when I'm near a wi-fi source.
When you want to update iPhoneA, place the SIM in iPhoneB and enable wifi sharing. Update iPhoneA. Swap the SIM to iPhoneB, and enable wifi sharing on iPhoneA. Update iPhoneB.