yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy Note 4] desilva79:
Thanks IcOpRo , so I figured it out , Region Lock basically requires a phone to have SIM card from that region in order to have the phone to be region unlock. Apparently Samsung phones are now region locked to prevent grey market resell. I've asked our rep from TMobile for unlock and they outright said no because we get this phone slightly cheaper than the full price due to our relationship.
[AT&T Samsung Galaxy Note 4] IcOpRo:
That's messed up, you are still buying the device out right :/

Oh well that site worked for me and others, and they get you the code within an hour or two

Good luck
[AT&T Samsung Galaxy Note 4] Skizzy034:
Pretty sure you need to activate with the original carrier first and make at least a 5 min call then insert the att sim and use the unlock code. It says what needs to be done in red print on the Cellunlocker.net site prior to buying the code.
[AT&T Samsung Galaxy Note 4] desilva79:
Thanks for the heads up , I got a TMobile Sim that I can use for that.
[AT&T Samsung Galaxy Note 4] vw671:
I'm joining the Tmobile Note on AT&T club this coming Monday when my new phone arrives. I got tired waiting for root on my AT&T version so this was an obvious choice. I'll let you guys know how it goes:)
[AT&T Samsung Galaxy Note 4] Face_Plant:
I didn't have to do any of that. I just popped in my AT&T sim, entered my unlock code, and I had service instantly.

My phone was brand new in a sealed box. Never activated on T-Mobile or anything.
[AT&T Samsung Galaxy Note 4] IcOpRo:
That's exactly what I did with mine also
[AT&T Samsung Galaxy Note 4] sidhak:
Do let us know if you were able to unlock right after opening the box without the 5 min call to unlock the region code.
[AT&T Samsung Galaxy Note 4] vw671:
All good w/ N910T & AT&T:)
[AT&T Samsung Galaxy Note 4] sidhak:
Did you put your AT&T sim and unlock it before you used your Tmobile sim to unlock region code?
[AT&T Samsung Galaxy Note 4] vw671:
The phone was purchased used. It was unlocked prior to me getting it. First thing I did when I got it was flash it back to stock with root and pop my SIM in. Worked like a charm (LTE and all) even without adding a new APN in.
[AT&T Samsung Galaxy Note 4] gadget069:
I did the same. Bought the phone unlocked, threw the sim in, rooted and started using the phone without issues.
[AT&T Samsung Galaxy Note 4] tbong777:
I bought the phone, bought the unlock ode/ Put my ATT SIM in (wiped rooted and Rommed) then called ATT with the IMEI (Previously I was using and International NOTE 2 that did not have LTE so I was not provisioned as having a Smart phone) I get LTE speeds in areas where they offer it. I can see now looking at the "Development thread" here, I made the right decision buuying a T mobile phone on Swappa.
[AT&T Samsung Galaxy Note 4] spinedoc:
Anyone considering going back to an ATT Note 4?!? I've had a major streak of bad luck, getting 3 bad Tmobile units, either that or there is an issue with having them on ATT network. My latest one has GPS dropouts constantly when on an ATT SIM, but works perfectly when on a Tmobile SIM, I know I know, it doesn't make sense and I agree, but that's what I'm experiencing. It also has an annoying half second freeze of the entire phone every 5-10 seconds. Of course it has the camera focus issue as well. In rooting and flashing it I tripped the dm-verity verification so I hope Tmobile is ok with that, I'm sending it in for replacement this week and I'll try one last time. I already am out $60 from having to unlock phone #2 and #3, and also $30 to s ign up for a Tmobile prepaid account as that's the only way they would send it out for warranty. Samsung was an option as well, but have to send it to Texas and they said it would take 2-3 weeks, and I don't trust them to troubleshoot it, Tmobile at least said they will just replace it.

I'm just kind of fed up a bit with the entire process. Really the last 2 things I wanted to root for is the xposed module that lets you avoid unlock if you are in a safe wifi/Bluetooth network which is in Lollipop anyway, and putting anything I want into multiwindow. I think I just want a nice ATT model and forget about rooting altogether.
[AT&T Samsung Galaxy Note 4] Face_Plant:
Absolutely not. I had an AT&T Note 3 and that was unbearable. I did not want to repeat that experience so the extra dough for the N910T was worth it. The only problem with my N910T is the GPS is unusable, but I have a fancy Garmin GPS that I use instead. My LTE speeds/coverage are comparable, and in some cases better than my Note 3. Thankfully my camera does not have the focus issue because I can't exchange with T-Mobile.
[AT&T Samsung Galaxy Note 4] spinedoc:
Having no GPS is a huge issue and dealbreaker, for me at least. I love the phone though, it's an awesome phone. My replacement should be here soon and that will make or break if I keep the Note 4. I may even go back to the Note 3, that was a pretty solid phone.
[AT&T Samsung Galaxy Note 4] hiverli:
can i install tmobile rom to my Unlocked Att Note 4?
[AT&T Samsung Galaxy Note 4] Face_Plant:
No.
[AT&T Samsung Galaxy Note 4] tbong777:
You need to ensure the BOOTLOADER is unlocked. to root the device to install TWRP..... not just the SIM card unlock. And no one has been able to unlock the boot loader and likely will not happen on ATT versions.
[AT&T Samsung Galaxy Note 4] ShrekOpher:
Can't figure out why you have a GPS issue? Using my N910T on AT&T and my GPS works great. Haven't had any issues with it. I did notice an issue with it on the last versions of maps, but that was an app issue not a GPS issue. The new version of maps has no issue.
[AT&T Samsung Galaxy Note 4] Face_Plant:
The app I used to test it was GPS Test from the Play Store. My phone would take about a minute to see 21 satellites and another 2 minutes to lock onto only 13 of them. It was accurate to about 60 feet. To be fair to my phone I was testing it indoors (second floor of my house) so my roof was in the way. I'm sure it would do much better outside.

I have no need or desire to use any of the location services so lousy GPS doesn't bother me.
[AT&T Samsung Galaxy Note 4] lucidvtec:
I have a wierd issue

Att unlocked phone

On tmobile

Tried new Sim card

Tried different apn setting

Note only one of the APN settings allows MMS to work

My issue is the download speed

It's like I'm throttled. ..around 1 mb

Up load I can't hit 6mb up to 20mb no problem

It's always like this unless I'm on WiFi

Even went into the stoere..called tech support

They said it was because it was a unlocked att phone and I wouldn't have this problem if it was a att phone

They did admit thou thag my upload speed should be slow as well and could not explain why it's only my download speed
[AT&T Samsung Galaxy Note 4] CJ74753:
So will HD Voice ever be possible with the T Mobile Note 4 running on the AT&T network? Is anyone else having gps problems as this is a huge deal breaker. Are any of the bands missing that would hinder my ability to get services? As the first post gives 2 different sources of data on things such as the 2G connection. Thanks for your knowledge.
[AT&T Samsung Galaxy Note 4] ShrekOpher:
HD voice works right now. You have to use the correct APN, and Ebanks it in the Samsung hidden menus. There is a thread over in the N910T section that walks through it.

I'm having no GPS issues. I will admit I don't use navigation that often, but on the 5 or so times I have used it I had no problems. It does take a few minutes to find the first location if you have GPS turned off.

I travel a fair amount for work and pleasure, and I have seen this phone connect to all of the available AT&T bands. I have not been to a city with carrier agribusiness yet though so I'm not sure about band 21.

I have not seen any issue with 2g but I have not been anyway that 3g at least was not available.
[AT&T Samsung Galaxy Note 4] CJ74753:
Oh okay, I was just going off of the information the OP had wrote in the 1st post stating "Known Issues using tmo N4 on at&t: no HD voice (supported by at&t as of 12/3/14)". Just hoping someone will get root on the AT&T model before I buy this phone, if not I'll just have to buy the SM-N910T...it has such a beautiful display.
[AT&T Samsung Galaxy Note 4] Synkromesh:
I just got my N910T unlocked from cellunlocker.net and my APN settings are the same as what's listed in the first post. However the status bar shows 4G, not 4G LTE. Running LTE Discovery shows LTE: N/A, HSPA+ -77dBm.

I talked to a rep at AT&T and asked if I was provisioned for LTE (I previously had a Nexus 5), and they said that I was already provisioned for LTE and everything looked correct on their end. I did not give them my IMEI. Any suggestions?
[AT&T Samsung Galaxy Note 4] ShrekOpher:
Yeah go to this thread and try the first APN.

http://xdaforums.com/showthread.php?t=2172110

If that doesn't work then download the app "LTE discovery" and use it to reboot the modern. It should connect eventually. It took mine about an got before I got consistent LTE when I first got it.
[AT&T Samsung Galaxy Note 4] gadget069:
Are you running a custom rom?
[AT&T Samsung Galaxy Note 4] Synkromesh:
I'll try those other APN's.

I've already tried LTE Discovery, when I reset the radio it very briefly picks up LTE, but then switches back to "N/A".

Stock ROM.
[AT&T Samsung Galaxy Note 4] holycow1:
I've experienced the same GPS issue. Using AT&T sim card in the T-Mobile variant causes GPS drop outs. It will actually turn off your GPS every 5 minutes or so, in my experience. So those who load up their GPS and say it's fine, try to keep it locked for 5+ minutes and it will drop out.
[AT&T Samsung Galaxy Note 4] CJ74753:
Well looks like I'll be sticking with the AT&T Note 4 then. I was looking at getting the TMobile variant but I can't be having these gps issues.
[AT&T Samsung Galaxy Note 4] gadget069:
I have no issues with GPS or lte.

---------- Post added at 06:56 PM ---------- Previous post was at 06:55 PM ----------

What about requesting a new sim card?
[AT&T Samsung Galaxy Note 4] Synkromesh:
So I went to the AT&T store and it turns out that my SIM was provisioned for LTE, but my number was still showing an older IMEI. They took my new one (which I was leery about), but it went through without a problem and I started receiving LTE right in the store. They didn't care that it was a T-Mobile phone. Problem solved!
[AT&T Samsung Galaxy Note 4] gadget069:
AT&T doesn't care who's phone you're using as long as its unlocked to work on their network.
[AT&T Samsung Galaxy Note 4] Xonto:
Hey, so can anyone verify that a new unlocked 910T can be brought on to the ATT network and do a full software update? If so, would doing this limit my ability to root the phone in the future? I have an unlocked 910T but have not put my ATT sim in yet. I want to verify that I will be able to update and root it later, or if I need to root it before bringing it on the ATT network and installing a custom rom (perhaps) later.

Thanks!
[AT&T Samsung Galaxy Note 4] Face_Plant:
You won't get any OTA updates. You'll have update manually with Odin or by flashing a ROM based on the latest software. You should still be able to root after updating unless T-Mobile locks the boot loader.
[AT&T Samsung Galaxy Note 4] madmike23:
I also never had any issues with GPS or LTE. Speedtest also came with similar results. Only problem I encountered was with Softcard, had to cancel it all and redo it... but at the end of this month won't matter anyhow.
[AT&T Samsung Galaxy Note 4] ramisan:
So I've done a lot of research and a lot of work. I have a T-mobile Note 4 that I'm using with ATT. I came from nexus 6.

Im not able to get lte at all. Tried several different apn's including nxtgenphone, pta, etc. Also got a new sim card. Checked myatt and it says I have lte ready and the phone is recognized as a flip phone. Also when I went to get a new sim card (since I thought this was the issue) I gave them the IMEI code for the T-m Note 4.

I was wondering if the way the phone was unlocked matters?

I bought it already unlocked, seemed kind of sketch. I do get data and every other service but it is slow. (even texts/mms are slow)

Help! please :D
[AT&T Samsung Galaxy Note 4] torreon901:
What APN settings will my Note 4 need for AT&T and MVNO's?

NAME: ATT Phone

APN: phone

MMSC: http://mmsc.mobile.att.net

MMS proxy: proxy.mobile.att.net

MMS port: 80

MCC: 310

MNC: 410

APN type: default,mms,supl,hipri

Then go to the home screen menu setting, more networks, mobile networks, network mode and change to LTE/WCDMA/GSM.
[AT&T Samsung Galaxy Note 4] ShrekOpher:
I get the best service with the below apn for AT&T:

Name: AT&T Nextgenphone

APN: nxtgenphone

Proxy/Port/Username/Password/Server: Not set

MMSC: http://mmsc.mobile.att.net

MMS proxy: proxy.mobile.att.net

MMS port: 80

MCC: 310

MNC: 410

Authentication type: Not set

APN type: default,admin,mms,supl,hipri,internet

APN protocol: IPv4

APN roaming protocol: IPv4

APN enable/disable: APN enabled

Bearer: Unspecified

MVNO type: none

MVNO value: Not set
[AT&T Samsung Galaxy Note 4] schweigster:
For those of you that unlocked the phone, did you do so in the stock T-Mobile ROM? I got my unlock code from T-Mobile but it is not working it says unsuccessful. I am on a custom Lollipop ROM. Do I need to flash back to stock for the unlock code to work? Thanks.

---------- Post added at 07:39 PM ---------- Previous post was at 06:51 PM ----------

I answered my own question. You do have to be on the stock ROM, or at the very least KK, for the unlock code to work. I flashed back to stock and the code worked.
[AT&T Samsung Galaxy Note 4] filmore77:
Sorry noob here. I had bought an unlocked note 4 T-Mobile sm910t to use on att. Like a dumbass I clicked some update on kids which installed I guess WiFi calling etc. Now I can't do MMS on WiFi anymore. Has anyone run into this and if there's a fix for it? I used titanium to deleted the WiFi calling but its still the same. Sorry to trouble you all. Like I said I'm a dumbass
[AT&T Samsung Galaxy Note 4] Bladerunner1825us:
Old post I know but I wanted to say thanks and let anyone else know that this APN also works the best for Cricket and T-mob Note 4's.
[AT&T Samsung Galaxy Note 4] ducksauce88:
I just purchased the T-Mobile variant and I am going to unlock it via http://www.cellunlocker.net. When checking out at cellunlocker.net they displayed a message:

"Please be advised in order to unlock your Samsung Note 4, you MUST activate the phone with the original carrier or SIM issued within your designated location. This must occur before you attempt to unlock and activate the phone with a foreign sim card. The Note 4 has a region lock feature seperate to sim unlocking and if unlocked before activating to its original carrier or continent the phone will be region-locked and must be unlocked directly from Samsung. For more information, please refer to the warning sticker found on the packaging that your phone came in."

Do I just need to get a T-Mobile sim and activate it once? Then boot it up with my ATT sim and enter in the unlock code? Or can I disregard this message?
[AT&T Samsung Galaxy Note 4] filmore77:
Yes just a T-Mobile sim
[AT&T Samsung Galaxy Note 4] Bladerunner1825us:
Hey just so ya dont worry if it happens, i just got mine unlocked yesterday by them. It took them 2 days to do it, yknow so ya have a timeframe and everything. Hopefully yurs is quicker!
[AT&T Samsung Galaxy Note 4] grmcrkrs:
Following. I have an AT&T note 4, tomorrow I'm buying the t-mobile version as well. I guess to test the phone before I buy I'll check that my ATT sim worms in it (they claim already unlocked) and that the gps works.. anything else? Lte check?

EDIT:

Bought the t-mo version, already unlocked. HORRIBLE service. Slow Internet. Dropped calls. I tried all 3 apn settings, Wap, attphone, and nxtgenphone settings. I guess I'll try tracphone settings next. Very sad face

No LTE. at all. Can someone help with APN settings?

Edit: fixed the issue. I had a corrupt esn. I used a service that fixed my esn, now I have LTE and calls etc.
[AT&T Samsung Galaxy Note 4] zoso28:
Nextgen works for me but try just ATT PHONE as the name and PHONE in the first box. Screenshot is attached and in APN Type use "default,supl,mms,hipri" without the quotes.
[AT&T Samsung Galaxy Note 4] gadget069:
Same settings I have and they work fine.
[AT&T Samsung Galaxy Note 4] ElAguila:
Is there any fix to get wifi calling working on att with the t-mobile phone?
[AT&T Samsung Galaxy Note 4] grmcrkrs:
I sent my phone to Samsung for repair. We'll see if it gets fixed....
[AT&T Samsung Galaxy Note 4] gadget069:
I don't believe att supports WiFi calling.
[AT&T Samsung Galaxy Note 4] Venom0642:
Wifi Calling does not Exist with AT&T , So there is no way you will ever get that to work!
[AT&T Samsung Galaxy Note 4] LuRock:
So from what I've read on this thread some are having GPS issues like me. Drops all the time, sometimes won't stick, sometimes it will stick but eventually drops. I just received a ATT Note 4 thru insurance claim but still trying to decide which to keep. I guess in my case I need the GPS more than having fun with custom Roms :( so is it just a defective phone I have? Or is this the case for everyone?
[AT&T Samsung Galaxy Note 4] gadget069:
I have not had any issues with GPS. My only issue is when I install CM, sms don't anyways want to send right away, and slow to connect to lte.
[AT&T Samsung Galaxy Note 4] LuRock:
On CM usually after i delete all apn and just keep the (Att Phone) and a reboot it always brought SMS speed back to normal for me.
[AT&T Samsung Galaxy Note 4] gadget069:
I may have to give that a shot. Right now I'm not minding tw 5.0.1.
[AT&T Samsung Galaxy Note 4] c0ldburn3r:
Huh didn't realize this thread existed.

Just my experience so far. Everything works great give the exception of location. I've found that at least on my device running the Canadian bases resolve the location lock issue. Been toying with the idea of ripping the KK firmware a part for the 910A, removing bootloader - modem - kernel) and see if it's possible to get it running on our 910T devices, not sure if this can even be done or not. If anyone has any ideas or thoughts PM on this.
[AT&T Samsung Galaxy Note 4] tbong777:
Same settings here, Just flashed Lollipop ROM All is fine GPS is actually better,
[AT&T Samsung Galaxy Note 4] imold:
Update to 5.0.1

I checked my software updates and it said update is available, so I updated and to my surprise the update was 5.0.1. Since I have a 910T phone using AT&T, I don't understand where this update comes from. Can someone on this thread explain that to me, I'm 75 and not up to most of you guys tech level. I'm thinking probably Samsung, I was using wifi for the update.

I'm happy with the update, phone seems smoother and zippier, navigation(gps) also is good.

Thanks,

pwc
[AT&T Samsung Galaxy Note 4] ljwnow:
I think the new modem in COD6 breaks carrier aggregation of N910T for AT&T. It has less CA supported.
[AT&T Samsung Galaxy Note 4] grmcrkrs:
Hey, can you explain what you mean? What is carrier aggregation? I'm on COD6 and data speeds and gps and reception is awesome... can you explain?
[AT&T Samsung Galaxy Note 4] ljwnow:
Sure. First you need to know what CA (carrier aggregation) is. In simple words, it combines two LTE bands to one so you get wider bandwidth by using two bands at once instead of just a single LTE band. And that's the first step of LTE-A. In the N910T lollipop update (OD6), T-Mobile reduced the CA combinations support to three. So only the three CA combinations T-Mobile uses are supported. You will not get CA while on AT&T network with the latest modem. That's why I wanted to downgrade to NK4 modem. It supports almost all AT&T CA plus T-Mobile CA.
[AT&T Samsung Galaxy Note 4] timebomb:
Just picked up a Tmobile note for ATT. It takes forever to connect to ATT after powering the phone on. Is this normal?

Also looses connectivity and getting modem speeds. =(

Currently on KitKat 4.4.4.

Tried Lollipop 5.0.1 and connectivity was worse.

Updated the IMEI with ATT and still having problems.

Tried different APN settings and still no luck.

Calling, sms, all working fine.

Any suggestions?

NAME: ATT Phone

APN: phone

MMSC: http://mmsc.mobile.att.net

MMS proxy: proxy.mobile.att.net

MMS port: 80

MCC: 310

MNC: 410

APN type: default,mms,supl,hipri

Name: AT&T Nextgenphone

APN: nxtgenphone

Proxy/Port/Username/Password/Server: Not set

MMSC: http://mmsc.mobile.att.net

MMS proxy: proxy.mobile.att.net

MMS port: 80

MCC: 310

MNC: 410

Authentication type: Not set

APN type: default,admin,mms,supl,hipri,internet

APN protocol: IPv4

APN roaming protocol: IPv4

APN enable/disable: APN enabled

Bearer: Unspecified

MVNO type: none

MVNO value: Not set
[AT&T Samsung Galaxy Note 4] killerdvd:
So after a couple of months with a note 4 for AT&T. Yesterday I decided to make the change for the T-mobile version. What is your favorite rom and which one work the best for the 910T on AT&T?:)
[AT&T Samsung Galaxy Note 4] AxlxA:
Where are you guys getting these Tmobile phones from? They're so expensive new! Something like $700-750. I am looking into this phone as my next but can't find it for a decent price.
[AT&T Samsung Galaxy Note 4] grmcrkrs:
Swappa.com of course. Or alternatively on Craigslist
[AT&T Samsung Galaxy Note 4] GF Geek:
+1

Just bought one thru Swappa.com -- fantastic service!
[AT&T Samsung Galaxy Note 4] AxlxA:
How much are the tmobile ones going for? I notice some mention Knox tripped....
[AT&T Samsung Galaxy Note 4] GF Geek:
Swappa.com shows price history graphs for each model -- and of course you can see the asking prices for mint-good-fair conditon for any particular device on sale at this time . . .
[AT&T Samsung Galaxy Note 4] AlpineMan:
Has anyone tried enabling additional HSPA and LTE bands on the T-Mobile Note 4? Info here:

http://xdaforums.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059

http://xdaforums.com/android/general/3g-lte-frequency-nv-items-qualcomm-t2950491
[AT&T Samsung Galaxy Note 4] CorynMidori:
So I recently got the the 910T variant and I am using it on AT&T and at first I was getting 12 Mb/s download speed (see attached screenshot) without changing any APN settings (the ATT Phone one was already there, along with an older ATT APN and a Tracphone APN, I deleted thesecond 3 2). But it was sh0wing i was only connected to 4G and not 4G LTE and I was trying to figure out why and eventually I went into the service mode (using *#2263#) and selected LTE/GSM Auto and now I was connected to 4G LTE but when I test my connection speeds I am only getting 6 Mb/s download speed. Anyone have any idea's why it would be doing this or what I should do?
[AT&T Samsung Galaxy Note 4] GF Geek:
I've noticed a wide variation in speeds without changing phone settings depending ONLY on time of day -- bandwidth issues. So you might be experiencing nothing more than bandwidth issues but hard to say without doing many tests over a period of time from one location.

Just a thought . . .
[AT&T Samsung Galaxy Note 4] mike240se:
I just received a brand new N910A from Amazon because of the $200 rebate. However I am on t-mobile service (via Ting), this means I dont get 3g service at all. Since it seems some of you have N910T that you are using on AT&T, would anyone in the USA be interested in a trade for my N910A for your N910T? It would need to be a like new unit because mine is brand new and have only had it for a few days.
[AT&T Samsung Galaxy Note 4] sandman7793:
Haha. Know one in there right mind would send you a unlocked bootloader phone (910T)to trade for a locked down like crazy bootloader with fake root(910A).
[AT&T Samsung Galaxy Note 4] GF Geek:
+1
[AT&T Samsung Galaxy Note 4] mike240se:
I didnt think about that, either way I am going to send the N910A back and get a N910T so I can get proper 3g.
[AT&T Samsung Galaxy Note 4] GF Geek:
C'Mon Guys -- I'm guessing that the American carriers (I won't mention names, but I can ask if you knew they start with an "A" and a "V"), that have "up" graded to locked bootloaders are convincing folks that this way no one can steal yours . . . it's a lot more secure having your device locked up . . . RIGHT?

:laugh:

LOL