I've had four calls with Apple where we've gomne through everything that has been reported here. They are stating they think it's an activation profile issue. The key thing for them was the DFU did not work after trying with multiple SIMS on multiple hotpsots on multiple laptops. Also being patient appears to be a good idea :) I have another call arranged for Monday and the expectation is that I will send the iPhone 8 to engineering to look at and probably get a new phone. I brought a reconditioned iPhone X to get me along and I'll end up upgrading another kids phone early. Rob

I have done everything including reinstalling IOS 14.3 beta. Reset network setting - never works and just hangs. Same on IOS 14.2 and IOS 14.3 Beta Turn off/on airplane mode - No difference Turn off/on cellular data - Not an option as its not available Hard reboot - Done Take sim out and replaced - Done Soft reboot - Done Reset content and data - Done Turn off/on roaming - Not an option as Mobile data just displays Error Nothing is working for me. The sim works in another phone, so thats not it. The iPhone 8 worked fine with 14.1 as well. I've moved my sim to an Android phone for the moment as I need calls. Rob

@maf123 Which only works if mobile data in General works. On my phone and others, mobile data simply has the word error next to it. Rob

Just downloaded IOS 14.3 beta for my iPhone 8. Made no difference. Still have no call ability, constantly getting Searching. Have now done every 'trick' on here that I've found. Reset network setting - never works and just hangs. Same on IOS 14.2 and IOS 14.3 Beta Turn off/on airplane mode - No difference Turn off/on cellular data - Not an option as its not available Hard reboot - Done Take sim out and replaced - Done Soft reboot - Done Reset content and data - Done Turn off/on roaming - Not an option as Mobile data just displays Error In the mobile data section, I get "Error" displayed. What annoys me is that my iPhone 7 which was going to my daughter has IOS 14.2 and works fine with the same SIM. The quality control at Apple has steadily got worse and worse over the years. Its is getting to the stage where I think its more hassle than it's worth. I know Apple has to support lots of phones but they need to get their testing working. They have full control over the iPhone hardware, not 90%, not 99% but 100% so they should be able to write software that works. I can handle issues in IOS such as images or applications not working perfectly, but the iPhone has one main use, making and receiving phone calls. The rest is details. As I must have a phone, I'll pull the sim and shove it in an Android phone until Apple can release software that fixes the problem. Rob