Samsung Messages Chat Features Won't Activate

Coolbean78 wrote:

Previously when I was using a Sprint SIM card my Samsung Messgaes app had the "Chat settings" option in the message's settings, but after switching over to a T-Mobile SIM card the option disappeared. I did extensive research and found that T-Mobile forces unlocked devices, such as mine, to remove the "Chat settings" from the Samsung Messages app, and only allows devices locked to T-Mobile to have that option. I was wondering when or if T-Mobile will ever allow RCS/Chat settings in the Samsung Messages app on unlocked devices, such as mine.

RCS works fine with chat enabled on non-T-Mobile devices.  Have you checked the APN settings for your device and in the Messages app?  I have a OnePlus 8T (KB2005) with RCS and Chat features enabled when using my T-Mobile SIM.  My Samsung S9+ and Note 9, both from Canada, both have RCS and Chat enabled in Samsung Messages with my T-Mobile SIM.  I have a Pixel 6 directly from Google as well with RCS and Chat enabled with my T-Mobile SIM.