Can I USe AT&T On Unlocked SM-N910T & Update Lollipop ? - Galaxy Note 4 Q&A, Help & Troubleshooting

I've been told that even though the SM-N910T is unlocked I can't update to Lollipop and use AT&T.
I can update the phone using Samsung KIES to T-Mobile's Lollipop update but that if I use AT &T I was told I'm in for trouble.
Can anyone shed some light ?

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Updating an unlocked Samsung galaxy S4 to Lollipop

I have a AT&T Samsung Galaxy S4 (Unlocked) and I am currently using it on Cricket wireless. The phone is currently running on Android 4.4.3 and I would like to update the same to Lollipop. Samsung Galaxy S4 got Lollipop rolled out by AT&T recently but I was not able to get the same since I switched carriers.
Now what is the best way to update the phone. If possible I don't want to root the phone. I went to best buy local store but they were not able to do the same as they said the phone is unlocked. Please let me know how I can update my phone to the latest version. It will be really helpful if someone can point me in the right direction.
Thanks all in advance for the help.
Will putting a AT&T sim in my phone help with the OTA? In the sense if I get an AT&T sim card from someone or purchase one and put it in to my phone will that help with the OTA? I am not sure if this phone was unlocked by AT&T.
I was able to successfully install the updates on my phone. I was able to downgrade my phone by installing stock 4.4.2 using ODIN and then was able to upgrade my device to 4.4.4 first and then update to 5.0.1 via OTA. It was an easy process and the instructions in the ODIN thread was really helpful.
Similar situation
I too have an unlocked SGH-I337 that is unlocked from AT&T and I'm using it on T-Mobile. How did you perform the Lollipop update without an AT&T SIM? I took mine to the Samsung experience at Best Buy and they weren't able to do it via Kies and they believe it's because it's unlocked. Nothing else has been done to it, just the AT&T unlock so that I could switch carriers.
Thanks in advance,
Charlotte

[Q] Updating from 4.4.4 to 5.1

I have the At&t branded S5 (G900A), but I'm on the T-mobile network.
My father just purchased the T-Mobile branded phone (G900T) and I discovered that his phone updated to lollipop, while mine was unable to do so.
Apparently both AT&T and T-Mobile have both shipped out lollipop for the S5 but for some reason, I can't seem to get the update.
I can't seem to see a manual way to download the update and do it manually either.
Can anybody please help me update to the latest version?
Thanks
get the firmware from sammobile and flash via odin
there is a video tutorial in the sammobile it self
G900T got the 5.1.1 too
but still no luck for the other devices still
but you have 5.0

AT&T Unlocked Blackberry Priv firmware update for Vodacom South Africa

I bought a AT&T unlocked Blackberry Priv on Ebay. It will not update to the latest Marshmallow version. I have been in contact with AT&T and they told me that I need a firmware update from my local provider. Has anyone have any experience of fixing this issue in South Africa?
Have you been in contact with Vodacom about this? I doubt they will help you or even give you a link to download a firmware that works in SA.
Doesn't the phone work in SA? Are you getting reception?
You could buy an AT&T Sim off ebay. I believe you can plug that in while on WIFI and you might get lucky
Sent from my STV100-1 using XDA-Developers mobile app
AT&T sucks
So AT&T have not officially released marshmallow for the PRIV yet. What is available is a the beta version only open to a few(pre-registered) users.
so basically when the update will be release we can install it via autoloader or, hopefully, ota on unlocked at&t priv.
you can install the update using the autoloader same as it is available for 5.1.1 as of now... for OTA you need the AT&T Sim card on the device

At&t sim unlock software update issue

Hi
I have a at&t SIM unlocked Samsung s7 edge using in India .The unlock is from a third party and not the official at&t unlock . My phone is currently on marshmallow 6.0.1 version APD1 ,When I try for an update all I get is software upto date from the at&t servers. According to my knowledge I feel there were few security upgrades released by at&t and am not able to get the upgrades , is there any alternative for this ?? I believe no root available as of now for G935A .
Flash the latest U firmware instead. https://forum.xda-developers.com/att-s7-edge/how-to/samsung-sm-935u-firmware-install-guide-t3411451

Why didnt my phone get nougat?

I recently bought my s7 edge directly from the samsung website at&t version and got it unlocked to be used on the tmobile network. I tried updating the phone to nougat but at&t software update would say that I am on the latest software which was 6.0.1. I even used a working at&t sim card because I thought maybe you need to be on their network but still it gave me the same thing. Finally I just used odin to update to nougat but I wanted to know if anyone knows why I was not able to update ota?
navpal93 said:
I recently bought my s7 edge directly from the samsung website at&t version and got it unlocked to be used on the tmobile network. I tried updating the phone to nougat but at&t software update would say that I am on the latest software which was 6.0.1. I even used a working at&t sim card because I thought maybe you need to be on their network but still it gave me the same thing. Finally I just used odin to update to nougat but I wanted to know if anyone knows why I was not able to update ota?
Click to expand...
Click to collapse
You are on the international version if you bought it directly from Samsung. They haven't released the international N for the S7 Edge. I know this is frustrating but you aren't the only one. If you can put up with ATTs bloat then go flash the Odin files, they have been released for ATT.
Sent from my SAMSUNG-SM-G935A using Tapatalk

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