Close

What are you looking for?

cancel
Showing results for 
Search instead for 
Did you mean: 

S21 Ultra Mobile Network Issues

(Topic created on: 19-01-2024 09:34 PM)
17895 Views
umbnich
Explorer
Options

Hi guys,
I've my S21 Ultra having Mobile Network issues since almost two weeks.
I saw it is something that happen to other users. But, how to solve?
I tried changing Sim card, etc.. The issue is clearly the smartphone.

Any idea?

Thank you.

1 Solution


Accepted Solutions
Solution
umbnich
Explorer
Options

Guys, this solved for me (for now):

Open the smartphone from the back, unscrew the sheet which cover the antenna (the "cable" on the right), unplug the antenna, clean the connectors, re-plug the antenna, close carefully everything.

 

I'm currently posting with 5G of the S21 Ultra.

View solution in context

30 REPLIES 30
Krystian101
Navigator
Options
Not sure what problem you've experienced but I sometimes got Not Registerd On Netowork problem and reseting the phone temporarily fixed the problem and I'd say its probably the phone but I'm not too sure in your case
Piper123
Samsung Members Star ★
Options
Hey there

Other users have found success for this issue by performing a Reset Mobile Network Settings.

It won't delete your data.
S24 Ultra
Scotcruz
Voyager
Options
Basically it's a hardware issue with the phone.. mine went in 3 times, each occasion I was fobbed off by the service centre.. at the end I traded it in..

Samsung aftercare is diabolical
umbnich
Explorer
Options

So what is the solution?

I saw different users complaining about this problem since about two weeks, but not a word by samsung itself.

A reset of the network doesnt work. Going in Offline Mode solves for just few seconds. 

Reboot doesnt solve.

The smartphone is pretty new. It is ridiculous to have this problem with a high-grade smartphone.

umbnich
Explorer
Options

Ehi Samsung, still you there? Anyone with same issue with different phone?

0 Likes
MFKR
Student
Options

I might have the same issue with my Samsung Galaxy S21 5G. For the last couple of weeks my mobile network has been acting weird by not always sending/receiving mms and not updating some app feeds sometimes.

0 Likes
umbnich
Explorer
Options

Ehi, have you solved?

0 Likes
MFKR
Student
Options

Not yet 🫤

0 Likes
umbnich
Explorer
Options

Ehi Samsung, any update?

0 Likes