SIM 1 not allowed: A problem from the August security update (installed in Sept)

[StixTheMiner]

Samsung South Africa blocks SIM 1 on Galaxy S devices that installed the August security update (pushed in September 2022). This problem has been widely reported by many galaxy S users this September. We have reported the issue in communities but there is no definitive answer. All we are told is to visit Samsung service centres. This is not a hardware issue, but a deliberate software lock. Similar reports of this problem are all over the internet. Samsung knows this problem and it's not fixing it. Let's all head to Twitter and demand answers from Samsung South Africa. I will drop a link to my tweet in the comments. 

[GhostRider12962]

I have 2 MTN SIM cards in my S20+ and they both work perfectly fine. Maybe it's only a problem for later S series devices. Or it could be only 5G devices?

[StixTheMiner]

Did you install the August security update? It seems to be a problem caused by that security update. S21+5G are the phones which were receiving that update this September. They're also the affected phones

[GhostRider12962]

I installed the August security update on my S20+ 4G and I'm not experiencing this problem. That's all I'm saying.

[StixTheMiner]

Thanks. That seems to be a problem on S21+5G then. Is far , all reports are from just the S21+5G.

[HenrygDr]

I have the same problem.Both of my Sim cards are blocked. I cannot use my phone

[HenrygDr]

Mine is s21 ultra 5G. I downgraded, using Odin but the problem persists.It started with Sim 2 being blocked now both my Sim cards are "not allowed".Frustrating. I have never contemplated leaving Samsung and Android but this one has got me reconsidering

[StixTheMiner]

Samsung is not scamming us

[Cattleya184]

I have the same issue on my note 20 ultra

[StixTheMiner]

Samsung is doing us dirty. It's not right

[MRVV]

Ditto