Samsung S23 Ultra Sim connection issues

[Kaywest]

Hello

I upgraded to a Samsung S23 Ultra refurbished phone on 15th December and have only just set the phone up the last few days. I have dual sim inside the phone and both sims intermittently display no sim with the circle with a cross through icon showing throughout the day. In the mornings both sims are not connected and I have to reboot the phone and toggle things on and off. I am missing calls as people are unable to get through to me or maps etc cuts out with no connection. I have tried reinserting sims, restarting, settings recommended etc with no joy. 

Anyone able to advise any solutions? If not how am I able to return this phone for a replacement?

Thanks 

[Leanne_T]

Morning @Kaywest 

Thanks for coming to the community. 

Where did you purchase the phone? 

Are both SIM cards on different networks? 

Leanne 🙂

[Kaywest]

Hi,

I purchase the phone directly from EE online as an upgrade. Yes the sims are both different networks.

Kay

[Leanne_T]

Thanks very much @Kaywest 

I would suggest giving us a call on 150, our tech guides will run through some troubleshooting with you and let you know what is needed 🙂

Let me know how you get on 🙂

Leanne.

[Northerner]

Hi @Kaywest 

It's a firmware issue UI 6 and Samsung are aware but haven't fixed it. 

https://eu.community.samsung.com/t5/galaxy-s23-series/s23-no-network-connection-after-the-latest-upd...

I have the same issue on my unbranded direct from Samsung device. 

Thanks