Solved! Go to Solution.
Hello, I know how frustrating it is when messages are slow or do not send at all. This article contains several steps for troubleshooting the messages, such as testing the phone in Safe Mode to ensure 3rd party apps are not interfering. https://www.samsung.com/us/support/troubleshooting/TSG01001439/ If the steps do not correct the troubles with the messages, you will need to follow up with the service provider for additional assistance. I apologize for any inconvenience.