My data has suddenly stopped i try to turn on my data it comes on but nothing shows ip above the bars of service and the data doesn’t work on any form of app that uses internet. I have unlimited data so thats not the problem, i need to know how to fix this! Its on my iphone 12 pro. If it is something to do with the data plan it tells me to add one but it has worked before i just tried to use it while out the other day and it didn’t activate or work.