I got this pre-owned iPhone 7 towards the end of December and I have been experiencing drops of cellular connection. It happened once at the end of December and after restarting it started working again. Soon after it wasn’t able to connect to the network anymore. I went to a local boost store and the representative told me that the sim card was the issue. I bought a new sim card yet nothing has changed. I’m still experiencing no cellular data and cannot even access the Cellular Data setting in my settings. Everytime i have restarted the phone it keeps saying “Cellular Update Failed”. It’s been two months now and I still have no service. I’ve paid my monthly bills and everything and still no service. I’m absolutely lost and have no idea on what to do please help me.
