Dual sim won't turn on

[nicdfyr]

Both sims are recognised by the phone, both numbers are correct but each time I try to set dual sim on I get the message that dual sim won't turn on. 

Really need both to work. 

Have turned on and off

Have removed and cleaned sims

Help please 🙏 

[nicdfyr]

I don't have space for two physical sims

[nicdfyr]

Ok

[BandOfBrothers]

Please can you send this as feedback via the Samsung Members App too @nicdfyr 

Justvas a troubleshooting step try >

• Safe Mode  > https://www.samsung.com/uk/support/mobile-devices/how-to-start-my-galaxy-device-in-safe-mode/ turns off downloaded apps and themes etc which may highlight an app or theme that's causing conflict. Alternatively long press the power off button and then ling hold on Turn Off to get to Safe Mode. 
• Clear Cache Files from the phone's System Partition Section  > https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/ You may need to insert your earphones or hook upto a powered On Laptop or use a Tv's USB Port to access the Clear Partition Section. This may help with lag or stutters as this clears the phone of old/unused or broken cache files.There is also a Repair Apps option in the Menu System too { Possibly excluding the s²⁴ Series of phone's } 

If i can be of any further help please don't hesitate to ask  😎 

[ForKinCrazy]

Did you manage to resolve this issue? I have the same problem with my S23 Ultra.

[Epixx]

same issue here, has anyone managed to resolve the issue? 

[samash]

SOLVED

After much pain, I worked out that under the "dual sim always on" tab, there is a box to enter numbers"
You need to remove the internal code (in my case, remove the UK +44 and change for 0) on both numbers. It'll then allow you to select dual sim always on

[Ken_Kimani]

Tried this and it  didnt work on mine

[Members_QQU6gQU]

I have the same problem. I can get SMS messages on SIM2 but calls go straight through to voicemail. In the past it HAS worked as dual SIM so I don't know why it won't now! 

[DavidInsight]

I'm facing the same issues trying to add an eSIM on my S21 Ultra

[Epixx]

Didn't work on my s22. 

I have 2 physical SIMs, one is a UK one the other is an Italian one. 

Wondering if the different country codes could be the issue?