Network Instability in Galaxy S24ultra

[WhiteRoomProdigy]

Hi, I recently got my Galaxy S24 ultra and updated it to the last security patch of 2025.. ever since then and after I had activated the esim, I have been experiencing unstable network connectivity, the network bar just comes and varnished even in areas with strong networks, I felt it was my service provider and inserted my primary Sim in another device, the Sim was very stable and functioned well I the new device contrary to what it does in my S24 ultra, this is clearly an S24 ultra problem or samsung problem and I would love to know if there is any remedy, Thank you. 

[johnz237]

Hi! Welcome to the samsung members community!

Where did you buy your phone from? "Recently" being I dont believe you can buy it unless second hand/ amazon...which has its own issues. Could be worth a return if the sim seems to be working normally in another device

Attempt by going to settings- general- reset- Reset mobile network settings. However- being just setup, I imagine this wont help.

[Tourbillon De La Vie]

Esim and primary sim, which one is it 

[Members_Mqm9dlY]

Hi , exact same things with me. Buy from samsung year ago and the issue is on main Sim card.

Network vanished etc.. since yesterday with the last update

[WhiteRoomProdigy]

I did not buy second hand sir, also I have done the network reset as part.of basic trouble shooting steps and nothing seems to work, I think the underlying problem is with how they programmed the software because I noticed that there is only one single location in my workspace where the network doesn't go on and off, once I move from there it becomes a battle,while In transit it becomes worse. 

[WhiteRoomProdigy]

Both esim and primary Sim, due to the frustration I had to remove my primary Sim and put in another device and use only the esim in the samsung, yet the esim network is unstable, the only time I get a stable connectivity is when I step Down from LTE to 3G, once the network is on LTE or 5G it becomes a battle which is not meant to be cos I have strong 4G and 5G connectivity in my locality 

[WhiteRoomProdigy]

Yes, It started after the last update, prior to updating the device everything seemed to be working well.