ContribucionesMost RecentMost LikesSolutionsRe: Text messages stuck "sending" I have been having the same problem of my messages not sending plus app updates do not finish. They would download to 95-100% and just sit there. I have finally fixed this. Download and install the utility of your choice which allows you to flush your cache. I used "All-In-One Toolbox" and this has fixed the issues on my OnePlus 7 Pro.
