S21 update to Android 12 - SIM continuously resetting

[gpaolo79]

Hello,

three days ago I have received the update to Android 12 on my Galaxy S21 5G  and, since then, the phone is almost unusable to make phone calls

Both sims reset themselves periodically, within minutes, dropping the network and any phone call in progress. 

After trying to reset the network settings, the phone has started to request the pin for the sims at each reset, so I had to disable it. Keeping one or the other sim active only isn't changing the behaviour. 

The diagnostic on the phone doesn't detect any issue even if run while the network is down. 

Does anyone incurred in the same issue or found any solution? The phone is 3 months old...

[hasham11]

BULF, yes. Thing is, I never faced this issue on android 11, using the phone for 10 months, only started after android 12. But if you're facing same issue on android, it could be a hardware issue, or Samsung somehow has modified something to entice us to buy the new S22 😂 

[gpaolo79]

If it's a plan to buy another Samsung phone, it isn't working with me 😁 

As first experience with Samsung, this is beyond unacceptable. 

Anyway, in the three months that I had it before the update, I also never noticed any issue. As I said, this could have been just a glitch of some kind, maybe even on the network. But it is rather suspicious that Samsung is willing to change the motherboard of people affected by this bug, if it were a simple, plain software issue...

[garethcia]

I had exactly this issue. Samsung came out today though, replaced screen, battery and motherboard and fault has gone away! Just thought I'd update you all.

[WelshPaul]

Crazy that they would't just replace the phone... The cost of the engineers time, travel costs and the parts probably cost more than shipping you a refurb!

[hasham11]

That's almost 70% of the phone changed, they might as well replace the phone and give you a new one 😂 

[gpaolo79]

I was going to say the same, it's basically a new phone! Ridicolous...

[garethcia]

I know!!! The did a "doorstep repair" so sent someone to my office. He was working on the phone for about an hour and a half! I even said would of been easier just to give me a new phone than repair this one... but hey ho I finally have a working phone after 2 months. But 100% it is hardware related and not software.

[hasham11]

I cba to get a warranty repair on hardware done, will just wait for the S22 or something else and sell my current phone. 

[gpaolo79]

If they do this kind of repair even as a "doorstep repair", I might go for that. 

But it doesn't make me feel too comfortable the idea that someone takes apart my phone on my kitchen table... I doubt that they can bring with them much equipment. I don't know, these phones aren't made to be taken apart and then re-glued back together...

[hasham11]

That is one of my fears, opening these phones and then resealing them, it's usually a machine done process and if a person is doing it, chances of it going wrong are there, especially if they're doing it not at their workstation, rather at your kitchen table 😂