AT&T not recognizing my AT&T device

[Matthew Stegman]

I can do it. Self taught. learned by reading forums.

 

[mustang7757]

Ok
Keep us posted

 

[swebb]

I talked to supervisor from AT&T and they think it's an internal problem.

I really think this is the issue and flashing the firmware again won't make a difference. I had a similar issue with a byod on T-Mobile. As long as you're getting the monthly updates and any carrier specific features (visual voice mail, apps, etc.) that you like are working, then I wouldn't stress out too much.

On the other hand, it won't hurt to re-flash the firmware and it may work. It's also fun to tinker with your phone, at least for me.

 

[Matthew Stegman]

Ok
Keep us posted

If I flash unlocked firmware do you know if ATT number sync will still work?

 

[mustang7757]

If I flash unlocked firmware do you know if ATT number sync will still work?

That im not certain, im thinking it should but cant say with 100 percent

 

[Matthew Stegman]

That im not certain, im thinking it should but cant say with 100 percent

Just wanted to confirm that this is the unlocked firmware for S21 ultra

 

[mustang7757]

Just wanted to confirm that this is the unlocked firmware for S21 ultra

Yes , can use frija just download from Xda Forum its faster but that is correct

 

[Matthew Stegman]

Yes , can use frija just download from Xda Forum its faster but that is correct

Which version of Odin would you recommend.

 

[mustang7757]

Which version of Odin would you recommend.

Get the latest , SamMobile should have for download otherwise XDA 3.14.4

 

[Matthew Stegman]

Had to use a patched version of odin 3.14.1. Setting the phone up now. Hopefully number sync still works. Fingers crossed!

 

[mustang7757]

Had to use a patched version of odin 3.14.1. Setting the phone up now. Hopefully number sync still works. Fingers crossed!

Yes sorry forgot to mention that

 

[mustang7757]

Hopefully works

 

[Matthew Stegman]

phone flashed and setup. having att rep work on getting volte working and going to try setting up watch this evening. will keep you updated.

 

[Matthew Stegman]

Hopefully works

Not on the firmware I wanted to be on. Looking for firmware where all csc's are available. I can't remember exactly what it's called.

 

[mustang7757]

Go to settings>about phone>software page and shiw a screenshot

 

[Matthew Stegman]

Go to settings>about phone>software page and shiw a screenshot

 

[mustang7757]

Thanks , your on the unlocked firmware

 

[Matthew Stegman]

Is it the same as multi csc firmware

 

[Matthew Stegman]

looking for SM-G998U1 combination firmware

 

[Matthew Stegman]

Thanks , your on the unlocked firmware

This update fixed a lot for me. VoLTE is working now.