samsung s24 ultra showing emergency calls only even though having full signal strength bar

[Aurora_borealis]

good day,

i was using Samsung s21 ultra and recently exchanged for S24 ultra 2 days back. The issue started after few hours of inserting m old sim which was working fine in my old Samsung S21 ultra which is now only shoeing emergency calls only inspite of having full signal bar. I did try all the methods like restarting the phone, changing the sim card to other sim card tray, resetting the network connection but it works only for 1-2 hours and again its going back to Emergency call only mode. So i am looking for anyone facing the similar problem and any help which will resolve this issue. thank you. 

[Aurora_borealis]

I changed my network mode from 5g to 4g.
But this is not a proper solution.

[tones2024]

Yeah that's not working for me unfortunately, has anyone tried a factory reset to fix it, I've seen online that there is something called sim toolkit that can get duplicated and cause issues with connectivity, clearing the cache and data in that app didn't work for me though.

[Shah120]

Lots have tried factory reset but hasn't fixed the issue. Once the firmware is updated a factory reset won't help I think. Samsung need to release new firmware update to address this issue and resolve it.

[bczalgiris]

Samsung support refuses to fix the issue and keeps sending me to the network provider. I tried 3 times to contact them, and the answer is the same.