The iPhone XR was a huge hit for Apple throughout 2018 and 2019. However some users in the UK are experiencing connectivity issues with their iPhone XR on the O2's network. Both Apple and the carrier publicly acknowledged the issue through separate statements. The problems affect calls, texts and data usage with users reporting loss of signal on multiple occasions throughout the day. O2's comment was that it's working closely with its partners to resolve the issue affecting its iPhone XR users. Apple's statement also confirmed the connectivity issues and promised a software fix with...
Source: https://www.gsmarena.com/apple_acknowledges_iphone_xr_connectivity_problems_in_the_uk-news-40912.php