yashsingh1/xdaforums huggingface dataset:
[AT&T Galaxy Note 3 General] Bob Simons:
it means you're going to want to update your bootloader at some point

First off, some qualifications. I'm not a dev or a coder so I'm not sure of any of this. If I'm wrong, I'd appreciate being set straight. Here's what I think I know. The bootloader is linked to what recovery you can use and what kernel you can use. Even if new recoveries keep compatibility with both old and new bootloaders, they'll stop support at some point. And new roms will stop support for kernels which run on the old bootloader. So you'll have to upgrade or be left behind, probably sooner than later if you care to be up to date or get new developments. And it's a silly use of dev's resources to keep backward compatibility beyond a certain point.

But at the moment it's rather complicated to update the bootloader and there is still some hesitation about giving up the ability to run old 4.3 roms. I think at the moment you have to Odin a 4.4.2 rom, root it, update to a recovery compatible with 4.4.2 if you didn't already, then go back to installing the rom you wanted. I hope the bootloader itself will be isolated so it could be installed directly. So then the process would be to update the recovery to one compatible with both series bootloaders, maybe install a rom compatible with both bootloaders, like Will's current 8.5, then just install the new bootloader. This way, the phone keeps running through the process and then at the end, you can use any new rom which requires the new bootloader. But this is all a combination of guesses and hopes.

Maybe someone who understands this will comment and say if I'm on the right or wrong track. There are also some who find hesitation somewhere between humorous and contemptible. And they've got a point, too.

Anyhow, that's how it looks to me. As soon as I learn how to do just the bootloader, I expect I'll do that. There's a TWRP which supports both bootloaders and the current Will03 SlimRom 8.5 does both bootloaders with the supplied kernel and there are probably others, too, so it should be fairly painless. Back up in recovery first, etc.
[AT&T Galaxy Note 3 General] JJ2525:
Thank you very much for the detailed info. What I'll take from that is...leave my phone as it is now!
[AT&T Galaxy Note 3 General] Bob Simons:
here's one person's advice on how to upgrade

according to this post, http://xdaforums.com/showpost.php?p=51043213&postcount=1217 , DriftorX says

Odin back to stock 4.3 and ota update to 4.4. Or download the zip of 4.4 and Odin it with the bootloader then reroot with cfroot and than do as normal to get custom recovery and flash away.

I'm wondering if someone will either explain how to just Odin the bootloader or will create a zip or tar to do just that as I said above.

You might try the current SlimRom 8.5 as it's compatible with both and seems to be good.
[AT&T Galaxy Note 3 General] JJ2525:
I have a weird issue that I'm unsure whether it is related to the signal problem I described last week. When I am on wifi, when I check my phone status I have no trouble maintaining an LTE signal. However, if I turn off wifi, I have trouble maintaining lte in the same exact place, as it switches between lte and h+ but spending 90% of the time on H+. Anyone experience a similar issue?
[AT&T Galaxy Note 3 General] TTLayland:
I am extremely jealous.
[AT&T Galaxy Note 3 General] mrv427:
[QUO TE=rock ina ndro id;47711368]double thanks:good:

---------- Post added at 08:11 PM ---------- Previous post was at 07:56 PM ----------

hey guys...was wondering if anyone is using tmobile note 3 on att network with their microcell????? does it connect to att microcell....any help is appreciated...thanks again.....[/QUOTE]

I can't saw if it will. But I have a note 3 from at&t and it's always having trouble with the mirocell. At&t say it's the lte in the phone. The mirocell is only a 3g booster. So is your signal sucks then you're not going to get much more. The signal is bad where I'm at and we have a micro so is always disconnect it from my phone note three s3 s4.
[AT&T Galaxy Note 3 General] Bob Simons:
what do you mean?

I don't understand your comment. Can you please explain?
[AT&T Galaxy Note 3 General] kwida94:
mms messaging

i did this and everything works i get LTE on at&t but i can not send or receive mms messages. did i do something wrong? also is there a fix for it? thanks!
[AT&T Galaxy Note 3 General] Bob Simons:
You did everything under APN settings? Did you see you must hit a Save command or your changes are not saved?
[AT&T Galaxy Note 3 General] kingtana1:
Hey guys I've tried to search this thread to try to seek my answer so apologies if I didn't see it and I'm double asking but I as well have a tmo note 3 running flawlessly on att with lte network support... I used chainfire app to get the unlock and so far no problems...

Now I am trying to upgrade to kit Kat but I was getting the error of my device being modified so I was not able to do the Ota update....

I then read here somewhere a way to use Wyman to bypass the error, so I did that and it bypassed the error and it let me dl the Ota update but as soon as I get 100% it let's me know there is an error and it will not let me install...

My question is how did you guys upgrade to kit Kat and if any of you know if I upgrade to kit Kat will I lose root and will the unlock go away?? Sorry for the long post but I would appreciate any feed back as I have searched all over this board and haven't been able to find a solid answer...
[AT&T Galaxy Note 3 General] Face_Plant:
It's not installing because your phone is rooted. Do not update to the official KitKat. You will lose root and there is no way to root it yet. Just flash a KitKat ROM. They're prerooted and most likely way better than the OTA KitKat.
[AT&T Galaxy Note 3 General] Jayster0966:
You can download the KitKat update from SamMobile. Make sure to wipe you phone first then enter download mode and flash with Odin. You will lose root and have to reroot the phone then install your preferred custom recovery. From then on you can flash which ever KK Roms you want to try.

Sent from my VisionX powered SM-N900T.
[AT&T Galaxy Note 3 General] kingtana1:
appreciate the help guys, in all honesty i just want the factory samsung TW rom on here, im not looking to get into any special rom right now, is there a rom out there i can flash thats kitkat tw stock rom? thanks again for help...
[AT&T Galaxy Note 3 General] CZ Eddie:
Wrong thread for talking about this issue. But here's a walk-through to get KitKat:

http://xdaforums.com/showthread.php?t=2672393
[AT&T Galaxy Note 3 General] sireniankyle:
Wanna trade?

Anyone wanna trade for my AT&T Note 3? I want to get one really bad after knowing this.
[AT&T Galaxy Note 3 General] hyelton:
Everything is working great on my T-Mobile Note 3 running on AT&T :D
[AT&T Galaxy Note 3 General] mircury:
You could try swappa. The best way would be to meet the person at a T-mobile store if you can.

I don't think anyone realized the full consequences of buying an AT&T Note 3 with a locked bootloader until root was taken away with the Kitkat update and not having an exploit for this long. It really is sad. I hope people remember this with their future phone purchases and carrier choices.
[AT&T Galaxy Note 3 General] xdm9mm:
It's a good thing that this thread existed here in the ATT forum because I was going to go for am ATT Note 3 because tmobile signal is crap in my area. After learning about the locked ATT bootloader I have decided to get a Tmobile note 3. I don't mind paying tmobile for 1 month of crap signal as long as bootloader is unlocked.
[AT&T Galaxy Note 3 General] sireniankyle:
The dumb thing is that it seems like Samsung phones are the ones affected. The HTC One M8 is still very unlockable.
[AT&T Galaxy Note 3 General] xdm9mm:
I think HTC allows bootloader unlocking using their owm software.
[AT&T Galaxy Note 3 General] sireniankyle:
I believe so, too. I'm thinking of switching brands.
[AT&T Galaxy Note 3 General] zi0nbaby:
My mms also do not work, with the apn settings on this thread.

Tmobile NOTE 3 on ATT.
[AT&T Galaxy Note 3 General] mircury:
Please post screen shots so we can look at your apn. Thanks!
[AT&T Galaxy Note 3 General] zi0nbaby:
Here... I have looked everywhere.... can't find a fix.
[AT&T Galaxy Note 3 General] mircury:
Did you recently port your number? What phone are you coming from?

Can you also try using a different MMS app other than hangouts?

So both sending and receiving MMS does not work or just one of them?
[AT&T Galaxy Note 3 General] zi0nbaby:
Have not ported my number, been on AT&T for like 5 years. Galaxy S4

I'm gonna try a different mms app.

Both sending and receiving don't work.
[AT&T Galaxy Note 3 General] CZ Eddie:
I'm on AT&T LTE and live in an area where LTE is great in some parts of the house and not-so-good in other parts.

And I've noticed that all of the International or AOSP ROM's that I've tried on my TMO N3 have made my 4G connection even flakier in my house.

But after flashing a custom TouchWiz ROM that I found in the AT&T Note 3 Development Forum, I could swear that my connection is just a bit stronger and more responsive?

And yes, I always use the AT&T APN settings found in this thread, with all of the ROM's I've used (except the ATT ROM).

This is the ATT ROM:

http://xdaforums.com/showthread.php?t=2709701

Am I just crazy or is this somehow true?

I even backed up the APN from this AT&T ROM and restored it to an International ROM and boom, my 4G went back to kinda flakey.

Modems don't typically get flashed with custom ROM's or kernels, they only get flashed when you flash them individually or you ODIN back to stock.

So other than APN, what is it in a ROM flash that could affect data signal/handling?
[AT&T Galaxy Note 3 General] mircury:
The Tmobile TW based kernel you have to run with any tmo/ATT rom could have something to do with it. Also, with the Kitkat update, any tmobile kernel/rom will show more bars even though the signal is the same. They tweaked the signal formula. This brought it more in line with ATT note 3 roms which have stayed the same. The only other thing besides the modem (N900A modems aren't compatible with the N900T) is the ATT CSC file. That may have some settings in it that may do something.

In the rom you link to which uses safestrap each rom has it's own CSC file but it uses the same KK Tmobile kernel and modem between the roms.
[AT&T Galaxy Note 3 General] CZ Eddie:
I use the same LeanKernel with any TW based ROM I install on this phone. Whether it was the underperforming (data download wise) Omega ROM or the AT&T ROM. Both got the same kernel and modem.

So, maybe something to do with the CSC then. The CSC is something new to me so I'll have to research it some more.

In case anyone wants to check it out, I attached the AT&T ROM's CSC (that I assume we're talking about) to this post.

Anyone can find it at /system/csc on their phones.
[AT&T Galaxy Note 3 General] SEB1109:
Having problems maintaining data +/or telephone connection

Please help!

Long story as short as possible...posted here because I need info relating to SM-N900T being used on AT&T

SM-N900T bought on ebay, unlocked with cell unlocker.

Came with NB4 firmware, rooted with CF Autoroot, tried a couple different ROMs and kernels.

Upgraded to NE6 firmware, still stock ROM, tried leanKernel v3, ColonelX R18, now back to stock kernel.

The data connection drops without warning. Sometimes phone connection drops also... notification screen shows " ( Searching ) " where it usually shows "AT&T".

When this happens, the phone gets very warm and the battery level plummets. Plugging it into the charger only helps to keep the battery from completely discharging. When it runs well (properly) it is actually cool to touch

Most times I need to restart the phone. Sometimes it works, sometimes not. Toggling "airplane mode" doesn't work. I have reset the modem and GPS songs to stock with the ussd commands. I have also tried to reset the connection, "search now for all available networks" and "select automatically" in "More networks...Mobile networks...Available networks".

I've contacted my carrier, they reset the phone connection, updated the IMEI info so the system recognizes my new phone on the network. I was getting LTE before calling, and when it does connect to the network/Internet I get LTE, too. How do I fix the data connection loss in the first place.

The data connection/stabilizer app didn't work either.

●●Maybe a related question, how do you flash a T mobile room AND another (ie leanKernel)?

I've been all over the forum and dont know where else to look, so now I figure the best place to ask is the thread that specifically addresses what I think is part is the core issue, one carrier's model phone on a different carrier.

If you have an SM-N900T that you are using on AT&T, please post what ROM, kernel etc you have been using. The more responses the better (variety is the spice of life).

I prefer TouchWiz based ROMs as I like too many of the features.

Thank you.

If this is in the wrong thread, could someone please relocate it.

Thanks in advance.
[AT&T Galaxy Note 3 General] snovvman:
I started on JB, now I'm on NE6. I decided to give Isis Wallet a go. I had to get a Secure Element SIM from ATT. Many at ATT don't know the difference between a standard SIM and a SE SIM. After a lot of research,

the corret part number for an ATT nano SE SIM is 4682B

. I decided to go with a nano with an adapter because this will future-proof the SIM when used in another phone that needs nano.

I am happy to report that the Isis Wallet app saw the phone as ATT and everything registered and working without a hitch. I originally thought that the T-Mo/NE6 ROM would create a problem, but the ATT SE SIM in the T-Mo phone, T-Mo ROM, and Lean Kernel worked just fine. I was able to download the ATT Isis Wallet app from PlayStore.

BTW, you will need the Xposed Module that masks root from Isis. In case you don't know, Isis won't work with rooted phones......

Enjoy.
[AT&T Galaxy Note 3 General] les_garten:
Hi,

Do I just unzip into system/csc? Any permissions to fix? What benefits would I get with my TMO N3?
[AT&T Galaxy Note 3 General] CZ Eddie:
I have no idea. I just posted the zip in case anyone wanted to look at it and research if there was anything in there worthwhile.
[AT&T Galaxy Note 3 General] FSUSeminole:
Advice?

Hey guys- just did the switch from TMo on the 900T to ATT. I'm used both the APN settings on this thread, and the ones they told me to use which were very close, but slightly different. Anyhow- I have a work ATT iPhone5 and get LTE here at the house but the 900T isn't switching... just toggling between HSPA and HSPA+... any ideas?
[AT&T Galaxy Note 3 General] mircury:
Did you give AT&T the 900t's imei?
[AT&T Galaxy Note 3 General] FSUSeminole:
Not at first... but I have now...
[AT&T Galaxy Note 3 General] mircury:
Well unfortunately, it won't get LTE for sure right now as long as that is in the system. Have you read the first post on that topic? And also a few posts back there was another person that had the problem and I referenced some post numbers.
[AT&T Galaxy Note 3 General] FSUSeminole:
She took the IMEI did some stuff in the system and it worked... Don't know what to tell you... sitting happy on LTE.. Will let you know if that changes :good:
[AT&T Galaxy Note 3 General] mircury:
You got a knowledgeable rep. Congrats. :) They're hard to come by.
[AT&T Galaxy Note 3 General] FSUSeminole:
One strange thing

That I haven't figured out yet... When I make a call, I change from LTE to 4G and it doesn't seem to go back unless I toggle airplane mode on/off... still verifying that's the behavior.... but has anyone else seen this?

EDIT: Well, scratch that.. I just ended a phone call and after a few mins checked my phone again and it was back on LTE... maybe I just wasn't being patient enough :)
[AT&T Galaxy Note 3 General] FSUSeminole:
For the record

Here's the APN Settings I'm using and everything works great:

NAME: ATT PHONE

APN: Phone

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

MMS proxy: proxy.mobile.att.net

MMS port: 80

MCC: 310

MNC: 410
[AT&T Galaxy Note 3 General] dirtysailorroe:
I just switched my t-mobile N3 to AT&T's prepaid program. It took the girl about an hour to get my APN set up so I could get on the internet. Now I'm not able to send or receive MMS using Chomp. I've looked all over and everyone has different settings for the APN and none have worked. Right now my APN is the same as FSUSeminole has on the post above me. I rooted my phone using ODIN 3 v3.07 while it was still on T-Mobile's network. Not sure what to do. Any help will be greatly appreciated.
[AT&T Galaxy Note 3 General] SEB1109:
Sorry...
[AT&T Galaxy Note 3 General] mircury:
Does the stock app work after uninstalling chomp?

Also did you use the settings inside chomp that they recommend for AT&T?

In chomp go to Settings > SMS & MMS Settings > MMS Settings (enable Manually Configure APN if required) and enter the following:

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

MMS Proxy: proxy.mobile.att.net

MMS Port : 80

Also check this page for other settings for Straight Talk or other carriers/MVNO's:

https://chomp.uservoice.com/knowledgebase
[AT&T Galaxy Note 3 General] dirtysailorroe:
The Chomp page had a suggestion that because of Adblocker, I needed to change my port from 80 to 8080. That worked perfectly. Thanks for your help!
[AT&T Galaxy Note 3 General] amir0cool:
some one please help me

HI everyone

i have n900t with stock NF4 on it when i set up AT&T Apn on it it show ITE ,however it is very unstable and slow :crying:. i tested with speedtest app n almost no unload very slow download . someone please tell me what to do it is very frustrating :crying::crying: .i test everything like custom rom different modem no result is it only me any one else sae issue .
[AT&T Galaxy Note 3 General] SEB1109:
It appears that while you may have 4G LTE service available your better (faster, more reliable) service is 4G. It is that way with me as well. I select connection preferences (more networks...mobile networks...network mode) from "LTE/WCDMA/GSM" (which is 4G LTE) to "WCDMA/GSM" (HSPA). I get a better connection which is more reliable and ends up being a more pleasant experience.
[AT&T Galaxy Note 3 General] amir0cool:
Sitll stock

I did as you said now i don't have coverage in so many places . :( I need any other suggestions
[AT&T Galaxy Note 3 General] SEB1109:
I'm sorry that didn't work for you. If you had to change any of the APN information did you make sure to SAVE your changes? (menu button, save).
[AT&T Galaxy Note 3 General] Bob Simons:
Any update to the instructuion not to give AT&t the Note IMEI?

I briefly had an AT&T S4 which I returned between 30 and 60 days. I then bought the N900T. So I didn't get the new phone $40 back as it was over the 30 days but Costco honored the 60 day return policy.

I should have gotten a refund on my upgrade eligibility but the account still says the S4. I cant get that cleared without giving them an IMEI for the 900T or conversely a fake one claimed to be for the N900T.

I'm interested in the unreleased big brother of the HTC M8 which I expect to come out soon since the N4 has been announced the new iPhones hit today. But I need to give AT&T an IMEI to get my upgrade eligibility back.

I'd give the N3 to my daughter or keep it for a spare so I don't want to take a change on having my LTE blacklisted. But losing the promised upgrade subsidy means losing $350. What should I do? write down an IMEI at the cell phone store and give them that?

Or is it now safe to tell them the truth?

Any advice from anyone who knows?
[AT&T Galaxy Note 3 General] bshouse:
I will be giving this an official test on Monday, but it appears to have worked for the OPO users.

This link talks about generating a IMEI: https://forums.oneplus.net/threads/guide-how-to-enable-lte-on-at-t.54775/

The AT&T Note 3 IMEI stats with: 35857905

Use the guide to generate and test your own IMEI starting the the provided phone identenifier.
[AT&T Galaxy Note 3 General] rans0m00:
Just my end of things... tmo note 3 but switched to att. Nothing worth buying out right now imo so keeping the note. Opened up the chat window and did it all through there. ATT Note 3 imei made from the links at the beginning of the thread and everything went smooth and I have lte again. (had it for a day or so before it was cut off)
[AT&T Galaxy Note 3 General] Bob Simons:
what do you mean by had it for a day before it was cut off?

For that matter, what do you mean by did it all through the chat window?

You're on a 900T, on AT&T and you used those instructions to make up an IMEI
[AT&T Galaxy Note 3 General] rans0m00:
Yep 900T which the network detected properly and cut my data to only hspa. I opened a chat window after logging into att.com and told him about about my data issue he asked for my imei. I then gave him the one I produced from using the links at the beginning of this thread and what someone a couple posts back said about what an att note3 imei started with. Now I have LTE with no issues.
[AT&T Galaxy Note 3 General] rawhide85:
[MENTION=543029]mircury[/MENTION]- Great job putting this together. I have yet to purchase a Tmo device but this is valuable information. +1

Sent from my SM-N900A running DynamicKat 6.1 by [MENTION=3105374]bri315317[/MENTION]
[AT&T Galaxy Note 3 General] thelaw.com:
This is an amazing thread. I ask here because the OP mentioned that the Samsung Note 3 T-Mobile version is by far the more versatile and capable to provide total coverage on AT&T and T-Mobile. But my review of capabilities seems to show something different. I created another thread for this specific discussion although it would probably also be beneficial to clarify if what the OP said a year ago remains true today:

Samsung N900T

UMTS850 (B5), UMTS1700/2100 (B4), UMTS1900 (B2), UMTS2100 (B1)

LTE700 (B17), LTE1700/2100 (B4)

Samsung N900A

UMTS850 (B5), UMTS900 (B8), UMTS1900 (B2), UMTS2100 (B1)

LTE700 (B17), LTE850 (B5), LTE1700/2100 (B4), LTE1900 (B2)

It would seem that the AT&T version has more LTE frequencies and would cover more scenarios, especially the 850 which I hear is used. However, UMTS doesn't seem to be covered in the 1700 band, which is supposedly critical for T-Mobile. Now I'm also seeing other bands crop up in the D850 (LG G3) although I'm not sure if they are essential for the primary GSM carriers, 3G, 4G and LTE coverage. Perhaps someone can provide some insight and clarification if this thread really does nail down the best solution for so many of us looking for cross compatibility....

and of course, MANY thanks to the OP for putting together the guide and information, which has been very helpful!
[AT&T Galaxy Note 3 General] mircury:
I think you've missed quite a few bands on the N900T. Look at the OP again for the bands supported.

"This was taken from the back of the box.

GSM: 850, 900, 1800, 1900 UMTS: Band 1 (2100), Band 2 (1900), Band 4 (1700), Band 5 (850)

LTE: Band 4 (1700), Band 17 (700), Band 1 (2100), Band 2 (1900), Band 5 (850), Band 7 (2600)"
[AT&T Galaxy Note 3 General] thelaw.com:
Wow - awesome!!!! Thanks for confirming what is on the box. That being the case, I'm doubly glad that I bet on what I read here from the OP. Despite not being the color I preferred, I ended up opting for the T-Mo over the AT&T, - especially given the rage about the locked bootloaders. Thanks again!
[AT&T Galaxy Note 3 General] cyburke:
This is on point, to a T, exactly the same issues I am facing. I am on the Cricket network.

I recently bought an Unlocked N900T (because I hated the locked bootloader on my AT&T branded Galaxy S5)

Like the guy before me, my phone will constantly drop to zero signal, get super hot, and the battery will plummet. Switching to Airplane mode and back does not seem to help. Switching to GSM only on the Network connection type doesn't seem to help.

Does anyone in this thread have an N900T on Cricket and figured all this mess out?

My phone is Rooted and I have a near stock ROM installed that was just rooted, deodexed, etc.

Baseband version N900TUVUDNF9

I am willing to switch ROM, Modem, Kernel, Baseband - whatever I can to get this resolved. THANKS!