Network errors

[myprecious]

S24 Ultra- keeps saying not registered on a network so can only make emergency calls and can't receive in coming calls but I can message and call on messenger no problem 

Anyone know why this happens 

[Ascott240]

I can no longer send/receive text messages in stand alone mode.

[MrGhoul]

Try performing the options to fix "not registered on network" message in the link below.
https://www.lifewire.com/fix-not-registered-on-network-error-samsung-galaxy-5188191

After performing all the steps in the link and your phone is still not making or receiving calls then you will need to take your device to your carrier so they can examine it.

[myprecious]

OK thank you so much I'll keep you updated