Samsung Rcs Not working. Chat settings says register failed

[Ozjasmine1]

Long story short. I had to take my sim out of my galaxy 20 note ultra to a dinosaur Samsung phone to contact my husband as my phone was not fully charged. Once house power was back on I charged my phone and inserted my sim back in. The chat in samsung message however had changed from the RCS (I think that's what it is called) that it was before. When I go to open chat messages it tells me what it does and I click on ok. Then it does this glitch thing and comes up registration failed. I've tried everything to clearing storage to all the possible YouTube quick fixes and nothing works. I'm still using mms. I can use google messages with RCS fine but I hate the layout of it and just want my original set up back. Anyone else have similar problem or have a solution. 

[Rach s21 Ultra]

I have this same issue on my s21 ultra.

It used to work then I had to factory reset and use a temp phone. Now my ultra is back up running chat registration keeps failing.

Did anyone get a fix?

[Members_S4UOwxi]

Ive switched to Google messenger now, not sure why Samsung suddenly stopped working for me, cannot register with it at all.

[Coley1730]

I have the same issue. Did anyone get this fixed? I have Samsung s20 ultra and no rich communications option. Registration failed and chat settings grayed out.

[Britt23]

I feel like I have tried every workaround on this thread and nothing works. I hate Google messages and don't want to use it. Can switching between the 2 message apps cause issues? Because while trying to sort this I've gone back and forth a bit. It's terribly frustrating 😫 

[RobbieMac]

Bang on, this worked a treat. So simple how could I have not worked this out. Thank you sir

[RobbieMac]

Note: I think registration failed initially due to my SIM initially having a different number, then me changing it with a PAC code. I would have factory reset my new phone again as I still have my previous Samsung, but that would have been unnecessarily laborious.

[RobbieMac]

If anyone missed one of the previous responses, the fix is, go to settings>connections>more connection settings, and toggle off Rich communications. Then go to Samsung messages, settings, chat features should not be greyed out. Chat features should be toggled on too within that. Upon return to Rich communications screen, that too is toggled back on. Thank goodness. 

[Members_EDNIvNT]

Legend!!!! Been bugging me for ages!! Toggled it off and on again and bingo

[Blessed4life]

Sorry for the late reply, only just seen a notification from this post on my phone, also maybe it's not activated on your network!
Contact your network provider.

[Blessed4life]

Could be.