Losing service network connection after UI 7 update

[shilo88]

After the 7 ui update, my phone keeps losing connection to service network. I have a circle with a slash symbol. Then it goes to emergency calls only. It'll connection to network briefly then it loses it. 

[IdontLikeUI7]

My phone does that **bleep** too! Tech support had me reset networks and now its worse. And of course you can't revert anything on Samsung that makes ur device worse. Everything they wanna fix just gives more problems. In my case they just blamed Google and said it was all googles fault. That Google made the update, forced it onto my phone and its Google that controls my phones performance. Samsung just sells devices.

[shojohn]

It's Google's fault?
Unbelievable they try and pass the buck to a company and a system that has absolutely 0% to do with the phone issues

[MaximConan7564]

Same problem here since one ui 7 upgrade on my 3 month old A55. Upgraded on thursday. Lost 4G. Only wifi works for data. Did reset network settings, wipe cache partition, disallow 2G. No avail. Next opération is full reset factory settings. If does not work : A55 will go to ebay. Thank you very much samsung. You lost a customer forever. 

[user6BUnpVjJAp]

Been having this issue as well. Apparently when you update where your phone is having connection issues, it requires a new Sim because the old Sim is no longer compatible. Your wireless carrier should provide you with a new Sim card free of charge, some carrier's may charge $15-20. This should not be the case. I hope this help a lot of you with this information. 

[Lola007]

Tried that with my s22 ultra after I did the update and lost network signal.. it did not work.

I changed my sim, I even ported to a new network provider..that's 2 new sim tried. It did not work.

[erroldactyl]

Having the same issues. Restarting does not work. Please advise

[erroldactyl]

This worked for me:

https://us.community.samsung.com/t5/Galaxy-S23/Sharing-the-steps-on-how-to-Clear-System-Cache/m-p/26...

[NYTeachNC]

Randomly, 7/3 my phone/voice calls began working again. Still says Invalid Card. This has something to do with Samsung update timings.

[jenpr]

Don't work for me

[shojohn]

I'm glad it worked for you You must have had an anomaly different than everybody else. I belong to quite a few forums and the thousands upon thousands of customers that are having this issue since the last update there is no fix. Samsung is being forced through litigation to do something but so far nothing