I use a Galaxy A11 and twice today a message from Carrier Hub “MCM client requests are processing:….possible issue with T Mobile network upgrade going on or some other network issue? Phone is a bit off with texts being delayed but no major issues yet
Best answer by tmo_mike_c
From what I’ve been able to gather this could be coming from the Carrier Hub app. I suggest uninstalling it if you have the option. This could happen to Tmo customers also if you’ve gotten your phone from Sprint prior to the merger.