Mine has been fine since my last update.
It reads both sim cards.
Does the sim card work in another phone ok ?
Have you managed to resolve this ?
Daily Driver > Samsung Galaxy s²³ Ultra 512Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "
Yes, having this exact issue with my A52s 5g.
The same thing happened earlier this year but was fixed with simply removing and putting back in the SIM.
Not so easy this time however.
I have tried the SIM in another device and is working fine. I have also tried the A52s SIM 2 slot and have the same issue.
I tried resetting network connections as well as all the standard steps (except factory reset) for this kind of problem with no joy.
I did find a reddit thread with someone who had same problem following an update earlier this year (likely the same one I quickly resolved). They said they took their device (a52) to a Samsung service centre where they replaced the motherboard, which fixed the issue.
With this in mind - and as my phone is under warranty - I have booked an appointment at a Samsung Experience Store in Central London. It's not until end of the month so I'm hoping some kind of patch will be released before then.
Please do update us if you are able to find a solution, I will do so likewise.