Galaxy Note 20 5G not connecting to mobile network after One UI 5.1 update

[lg04]

Hi, I have a Galaxy Note 20 Ultra 5G mobile and recently got an update to One UI 5.1. Ever since the update, I haven’t been able to connect to my mobile network. Everything was working before the update. I have tried a number of things to get it working including another SIM card, resetting the network settings, wiping the device partition cache and factory resetting the phone. None of these fixed the issue. I know the issue is with the phone update and not the SIM as the the SIM works in other phones. Is there any other fix or workaround available ? Is anyone else having the same issue ?

[Djbrothersyl]

I have the same issue here, phone update by it self and after the update I can't get network service. I HAVE A GALAXY NOTE 20. Tried everything, change the same nothing, works

[Members_tNo0nhK]

Have you changed the thing the conmector in the youtube video?

I have now same problem.

[K2705_BM-08]

I think it could be a problem with the chip. If it is Exynos, then that's the problem

[Christiaan01]

How and where can i get a chip?cause the cellphone repair shops in my country charge more than what a new phone costs and it is not guaranteed to work 100%, i cant order one online because i cant find a place that sells and ships overseas,

[Sahil18cbr]

How? 

[Members_Q7Bb9Bz]

I came across this discussion after searching for it since I got this issue about last week. I am on Note20 Ultra 5G since about Jul-2022 after buying the phone from BackMarket in UK. 

How is this issue so random... I see people reporting this issue from past 2 years or so and i havent seen anyone else running into this issue recently. 

[Christiaan01]

The issue was not only on the note 20 5g but on some of the s23 and s24 series aswell,

It was something to do with the one UI 5.1 update that f*cked the phones,no reinstatements was done,no repairs and no callbacks or anything,samsung just ignored the cries and continued like nothing happened, even though the phones are still not right,

Some of us just accepted the fate and moved on to another phone,

Myself on the other hand still have tha faulty note 20 ultra 5g, i can only use it to connect to wifi or a hotspot to watch videos and play games,hoping that some day someone comes up with a method to fix the issue that will not cost me half of my house (repair costs in my country is crazy,can buy a new phone cash with the same costs on repair) so im scanning to see where i can buy certain parts that can be swapped to fix the issue online but have not been successful at all