5G network lost

[Miljan]

Hello!

Recently, my operator allowed me to use 5G (NR) network. I did not have it for some time and, at one point, I put my SIM card from SIM 1 to SIM 2 slot, and my phone instantly connected to 5G. Everything was fine for that day, I just noticed that battery drains faster and the phone heats up more than usual. I turned on power saving for a few minutes just to see if it disconnects from 5G. When I turned it off, my phone connected to 5G only for a few seconds and then lost 5G network. I have not been able to connect to 5G ever since. 

I received a new SIM card, performed mobile network settings reset, rebooted the phone multiple times, switched the airplane mode on and off, updated software, but with no success. The phone connects maximum to 4G+ (LTE_CA). 

I attached a few screenshots from the time when I had 5G network and from now.

The phone is Samsung Galaxy A54 5G (SM-A546E). 

Has anyone faced with a similar problem or does anyone know how to solve this? I would be very grateful. 

 

 

[Robin999]

As this is a network issue, the first thing I'd do is contact my mobile network provider. They may of been testing 5G in your area, or they are currently having issues. You may even require a new SIM.

[Miljan]

When I put my SIM card in another 5G capable device, it connects to 5G network normally. When I put 5G SIM card of another provider in my device, it cannot connect to 5G. 

[Robin999]

Was it the exact same model?

[Miljan]

It was Samsung Galaxy S22+ 

[Robin999]

Thanks. Well, your device certainly supports 5G NR bands. The question is, which band is your carrier currently using, and are they having issues in your area? I'd still call them and ask.

[Miljan]

My operator uses the following 5G bands: n1, n3, n7, n8, n20, n28, n38, and n78. I think Samsung Galaxy A54 5G (international version) supports all of these bands. 

As I said previously, when I put my SIM card in another 5G device everything works fine, so it must be due to the device.

[Robin999]

I think your device uses N41, n66, n71, n25 NR 5G bands, so if that's right what you say about your network, then that's probably why you can't get it anymore. The S22 you put your sim in uses N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n71, n260, n261 so that's why it worked on that device.

[Miljan]

According to GSM Arena, Samsung Galaxy A54 5G supports the following 5G bands: 1, 3, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA/Sub6 - International

Galaxy S22 5G supports n260 and n261 as you wrote, but only the US version.

[Robin999]

NR bands?