I've been an owner of Samsung phones for years now, I think we call can agree that the basic function of a phone is to make and receive calls. When a "flagship" phone isn't able to do that, I'm not sure what to call this device, definitely not a phone. My s20+ stops receiving calls and SMS when it's been idle for a couple of hours. By idle I mean when I have not made any calls. Turning on/off flight mode doesn't fix it, restarting the phone doesn't fix it. I must actively try to call anyone to "wake up" the phone temporarily then I can receive any missed SMS's and calls....then I have to repeat ina couple of hours.
I have been trying to resolve this issue with Samsung directly, but with such terrible customer service, they didn't take me seriously. I'm reading online that many people are having the same issue all over the world, and they all say that Samsung is ignoring them and just saying "the phone is operating as per manufacturer's specifications", which is also the answer I got after trying the typical troubleshooting steps with them and my service provider.
This is a horrible phone, not worth the price AT ALL. I want to return it!!! I already went back to my S9 because I already missed 2 job interviews due to the S20 Plus. Terrible phone, terrible customer service/technical team. Never buying Samsung again, and I really really wish everyone would speak up, so this company can stop taking its customers for granted.
We deeply apologize for the issues you are facing, please contact our call center on 800 7267864 and request for Remote Management. On the other hand, you can replicate the issue and send an error report.
I have done all of that, submitted 2 error reports and no one got back to me...it's been a month since I raised this issue, Samsung never got back to me. I also took it to the authorised service center, they couldn't fix it. So what now? My simcard is working fine on other phones, it's just this one where I can't receive all calls.
I'm facing the same issue on my Samsung S20 Ultra. I realized that if you turn off your WiFi, you can receive calls. Still, it's not a solution considering that you have to make a choice to either use Wi-fi and not be able to receive any calls, or turn off WiFi to receive calls.