Galaxy S21 Ultra will not update to Android 12

Title pretty much says it all. I had dial up through ATT for 8 years. Anytime I enter an area with 5g my phone becomes completely inoperable, with speeds and latency worse than dial up. Not a single app that requires mobile data works. Including email, banking, and internet.  I'm not

I am trying to find out how I can set how many times an incoming call rings before going to voicemail on my Samsung S20+ 5G. I can't find it in the "SETTINGS" set up, nor the Samsing manual. I did try to do it using MMI code, but it didn't work.

I have been trying to report text spam for about a week. There has been no response what so ever. Is this system not working? Is my phone hacked? What is the problem? I have rebooted my phone and still not working.

Until recently by Samsung S9 would last all day on a charge; now the battery is down to 15% be late afternoon. In Device Help - Battery the AT&T ActiveAmor Mobile Security App uses 25% of the battery usage.  Should I remove the app?

Learn how to resolve Intenet Issues on your Samsung, Sony, LG, and other Smart TVs Did your smart TV recently lose its internet connection? If so, the following steps may help resolve the issues you are having.   Things to try for your SmartTV Make sure your internet is connection is working

For the last 3 or 4 days, I suddenly cannot make or receive calls. People trying to call me immediately go to voicemail. And when I call others, as soon as I hit the phone button to make the call, I immediately get the message "call ended". This is with my regular number tied to my AT&T sim as w

I want to unlock my device but I didn't received any email for confirmation?

I'm looking at possibly trading in my galaxy s21 for a galaxy z flip3... on Samsung website it has the offer for "trade in bill credits"... can anyone tell me if the bill credit can be used for a prepaid account as well? Or is it only for an installment plan?

Im looking to have all my records/bills emailed to me with specific data usage details. I want to see every call and every single text from both of my lines. Thanks so much for all your time and help. 

I have a phone it's 3 years old I need to unlock it I have another SIM card with another company I paid off

Samsung Galaxy S9 all up to date. I've tried everything (even samsung tech support) except my last resort of doing a hard reset. This issue is fairly new within only a couple weeks. Everything looks fine on my end but my friends and family are not receiving any of my pictures. AT&T is my carrier

Why haven't I received my unlock code for my SIM lock on my device has been more than 48 hours and it still says processing processing waiting 48 hours or 2 business days and spend 5 days?

My Samsung 9+ phone had an ATT update today and now my Samsung Notes application is not working.

Not an ATT customer and I received an email about one with the last 4 digits of the account. Not exactly sure what is going on but I want some answers because I was a victim of Identity Theft in 2018

I purchased a brand new unlocked note 9 off of eBay. It was a T-mobile phone originally, it works fine with att. But it will not software update, when I check for updates it says update is up to date. I know it isn't, I know there is an update.

My sister broke her phone, and my family was thinking about giving her my old one. It's is the same phone my sister broke, and the same type of wireless plan I had originally had on it. We do not know if it's possible to switch to a different plan on it, and we do not know if it will charge us eithe

When AT&t offered me a free phone and I called the 800 number 3G hotline number I got told I was getting an a12 sent to my address I never got it that was 2 days ago now that was supposed to get it I can't find an order number now anywhere no history of it can't find any history of the conversat

I work for att in a mall as an authorized retailer, I got my bf an account and we upgraded his phone to the new Samsung ultra a little while back. He lost his job a couple months back (2-3) and we haven't been able to pay the phonebill with installment plans since I'm working on a minimum wage job.

We are excited to announce that you can pre-order the new Samsung Galaxy Note7 smartphone from http://www.att.com/note7 and AT&T stores starting on Wednesday, Aug. 3 and it will be available in AT&T stores starting Friday, August 19!     Are you as excited as we are for the Sa