Network problem

[marchy30221]

Hi I changed phones from s23+ to a s24+ and used same sim card now I nearly always get no network connection messages and can't phone anyone. 

If I turn off and restart phone I can dial out straight away.ive changed sim card and it's still the same .

Any ideas .

Thanks

[lminvti]

Hi there 👋 and warm welcome

Sorry for your issue you're facing..

First thing to try is reset network settings.
Settings > general management > reset > reset mobile network settings

Wipe cache partition:
Turn off your phone
Plug to PC, tv etc via USB Hold power and volume up button until samsung logo appears Then quickly release power button and keep holding volume up button until reboot menu appears then navigate with volume down button till wipe cache partition press power button Restart your phone

Run your phone into safe mode:
https://www.samsung.com/uk/support/mobile-devices/how-to-start-my-galaxy-device-in-safe-mode/?srslti...

Also check ypu networks provider coverage in your area as well as try to put your sim in second sim card slot, or give you network provider a phone call to see if there any issues with network itself.

I have s24 ultra and most of the times I've noticed when I'm at home my signal drops anywhere from1 to 3 bars but I'm still having 5g and able to make calls etc. Theres wifi calling option as well you can turn that on while connected to wifi.

Last options would be try to back everything up do factory reset, or book a repair appointment wirh samsung you can do on app under support section "request service" also you can run diagnostics on same page on app.

See if any of that would help

[BandOfBrothers]

Hello @marchy30221 and may I extend a Warm Welcome to the Samsung Community Forum 👋 

I totally understand and appreciate how frustrating this must be for you. 

"Phones do not latch onto the strongest signal.
They follow the network assigned procedure, hence why it's not uncommon to be connected to a weaker signal than is strictly available "

Run the phone's Diagnostic Tool found in your Samsung Members App to see if that highlights anything. 

If this does not highlight anything and your sim card is working properly in another phone , and if you can try another Sim card in your phone to see what happens then as a process of elimination. 

If all looks good then a Samsung Service Centre can assess your phone. 

https://www.samsung.com/uk/support/repair/ 

If i can be of any further help please don't hesitate to ask  😎 

[marchy30221]

Thanks for your help

[lminvti]

Not a problem at all 👌

[marchy30221]

I'm also getting not registered on network, soon as I turn phone on and off its OK for two or three calls then it dose it again and I have to reset phone.

[marchy3022]

Problem now fixed.
The tech changed sim tray,ariel, and ribbon and its fixed problem.
First time he's come accross this problem.
He tested it and it came up red for connectivity it was a intermittent but the repair fixed it.
Thanks for everyone's help