yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Note 9 Questions & Answers] VortexHD:
Hello,

I use the Three network in the UK with an unlimited data plan and they provide a service called 4G Super-Voice also know as VoLTE.

To get this working I had to flash my Note 9 with the 3 firmware which is annoying because of the boot screens but its worth it for VoLTE.

Anyway, I can only access 4G Super-Voice if I put my phone in aeroplane mode and then off aeroplane mode. I then can see using *#0011# that I am using band 20 which is used for 4G Super-Voice.

With this, I can access VoLTE, better signal and faster 4G speeds. But after 30seconds it goes back to Band 3 and I no longer have access to VoLTE and the faster speeds Band 20 offers.

I have had a look online and a few people have fixed this on other devices by only letting the phone access Band 20 and disable the rest. On my Note 9 when I try entering Service mode using *#2683662# I'm left with a blank screen with no options to select. Not sure if 3 have locked this on there firmware or if I'm accessing the menu wrong. Any Help is much appreciated. Thank You
[Samsung Galaxy Note 9 Questions & Answers] billa:
Yes, you can lock out certain bands while allowing others, but the *#2683662# code has been deprecated in the latest models/firmwares.

Enter this diag code *#2263# or *#2766338378#, tap LTE Bands Preferences, one by one deselect all the bands you don't want (especially band 3), tap on Go Home or Go Back/Previous, and finally tap on Apply Band Configuration. If you did everything correctly your phone should no longer pick up the unwanted bands.

Here's some more information about this issue.

https://xdaforums.com/showpost.php?p=81262805&postcount=18
[Samsung Galaxy S10 Questions & Answers] Trillexer:
When I'm on a call, all notifications makes a chime as it comes through, even though the phone is set to silent and vibrate one.

1. I have disabled the setting in the phone app's setting: "Notify during calls - Allow alarms and notification to sound during calls"

2. I have all notifications set to silent and vibrate all the time because I don't want sounds.

3. I tried using an unobtrusive "pop" sound as the notification sound, but when on the phone, all notifications sounds switch to the default Samsung ringtone that is very loud and distracting to the person on the other end.

Any idea why this is happening? Anything I can try next?

I have Galaxy S10 Unlocked (Pie - July 1 Patch)
[Sprint Samsung Galaxy Note 8 Questions & Answers] Dbzfan:
Is there any root method for android 9?

I already have unlimited hotspot just want access to wps since 9 doesn't support it anymore.

Do I have to Odin back to 8?
[Sprint Samsung Galaxy Note 8 Questions & Answers] Youdoofus:
i dont know if there is root for 9 on this device, but i can tell you that you wont be able to revert back to a version of android on an earlier bootloader.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] jcrompton:
Does anyone know how the new unlocked devices handle carriers like ATT for calling features, like WiFi Calling? The Pixel works as long as your account is activated for WFC

If not, will you be able to flash carrier former on an unlocked device to get features working?
[Samsung Galaxy Note 10+ Guides, News, & Discussion] Geekser:
I don't know how that works with ATT - I know that my G975F does not get those calling features - but considering the unlocked Pixel Does get Wifi Calling and and Enhanced LTE on ATT, it is possible that an Unlocked Samsung Phone will too. (if it were a tmobile phone, it would not get WIfi Calling on ATT - but I honestly think the Unlocked Samsung Might) Good Luck.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] jcrompton:
Wasn't sure ..... It was strange in that ordering the unlocked from Samsung have 600 credit for a Note 9 , but only 300 for an ATT ???

I have accounts with ATT and TMO ..... So I thought I know unlocked might be best

But I don't want to end up with no calling features on either
[Samsung Galaxy Note 10+ Guides, News, & Discussion] black96ss:
Worst case i would assume you could Odin the att files on the unlocked version to enable it. That's how it's been the last few years anyway with Samsung devices(snapdragons). I know that those features work on the unlocked with t mobile.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] chetly968:
On T-Mobile I get WiFi calling and volte with my old Note 9 and current S10+. Never had an issue. The only thing you do t get is that aggregate LTE capability. But I don't really notice a difference in speeds. Not sure how it works with ATT.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] guyd:
I can tell you that the Unlocked S10+ does NOT get WiFi Calling or VoLTE on AT&T.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] bkdodger:
S10+ here on T-Mobile all is solid with unlocked.. I expect the same on N10+

S10+ Tapatalk
[Samsung Galaxy Note 10+ Guides, News, & Discussion] jcrompton:
Did you try any of the "tricks"? Like Odin flashing carrier firmware or making sure that ATT had your IMEI in their database or even putting an ATT device IMEI in your account settings?

Because if you do nothing and expect WiFi calling on a non ATT device it will never work
[Samsung Galaxy Note 10+ Guides, News, & Discussion] Rydah:
I have the unlocked Note 10+ on T-Mobile and have all of my carrier features except native video calling/rcs.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] yakapa40:
about N975U1 firmware

-ATT CSC : no features

-TMC CSC ( Tmobile )

-XAA CSC ( unbranded ) IMSsetting for Vermont , VIAERO and GCI WEB

-XAG CSC ( unbranded ) IMSsetting for Tracfone - T Mobile , Simple , WalMart Family Mobile , Solavei , Multibrand , Consumer Cellular TMO , LycaMobile , PLDT , Red Pocket ,

Republic Wireless , Ultra Mobile , Ting , Vodafone US

regards
[Samsung Galaxy Note 10+ Guides, News, & Discussion] guyd:
Odin flash carrier firmware. I'd rather just buy the AT&T version and not have to go through the trouble.

Yes, AT&T has my IMEI in their database. I even gave them one from my AT&T branded S9+, but that trick doesn't work anymore. They read the IMEI directly out of the device at some point when it connects to their network.

I called support and asked them to verify that I had WiFi calling and VoLTE provisioned, but then when they saw the IMEI was from an unlocked S10+, they told me it wasn't supported.

I did everything I could short of flashing the carrier firmware, which I didn't want to do because I was considering switching back to Verizon. BTW, WiFi calling and VoLTE works fine on Verizon with an unlocked Samsung S9 or S10 without having to flash anything! It's AT&T that's being difficult.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] butchieboy:
What Guyd said. I called At&t to see if they coould provision a device. The young lady I spoke with gave a list of like 5 devices they can provision. I then asked about the unlocked firmware and they do not support unlocked firmware for advanced messaging..wifi calling..or volte

SM-N935F Note FE OREO
[Samsung Galaxy Note 10+ Guides, News, & Discussion] jcrompton:
For sure, with some of my prior devices unlocked firmware or even custom ROMs would not allow for ATT to be successful with WFC. It takes an IMEI ,(that's from an ATT branded device that does WiFi calling in your billing account) ..... AND ..... The correct CSC stuff ...... AND ...... a couple of files that are used by the system with ATT WFC.

The Pixel 3 and Pixel 3a had all that was needed, even though unlocked, to work with ATT and obtain WFC as long as you had correct info on ATTs end with an IMEI that allowed for WFC on their Network.

Btw in my experience I never had any issues with another IMEI being maintained in my billing account but admittedly it was easier for me to change IMEI because I could do it myself with my business account portal.

But some prior devices like the Note 9 and S9 and 10 required other stuff including files to make things to work.

My original question was a hopeful one that the newer device Note 10 (unlocked) possibly had everything it needed ( at least on the phone's end to make things work, like the Pixels do).

Btw. In my experience, asking level 1 or even 2 ATT tech support is utterly useless with things like this.

They don't " support" anything that isn't in their cookbooks that they read from during a tech support call!!!!!

All that said, my guess is that we may have to flash carrier firmware with Odin to get calling features with ATT but I also guess that TMobile will work out of the box, as I believe some have confirmed already
[Samsung Galaxy Note 10+ Guides, News, & Discussion] aznmode:
What is aggregate LTE?
[Samsung Galaxy Note 10+ Guides, News, & Discussion] yakapa40:
[MENTION=517915]aznmode[/MENTION] .

google is your friend : ask for ATT Carrier Agregation

it's the association of multiple frequencies for better Peak data rate in LT-Advanced
[Samsung Galaxy Note 10+ Guides, News, & Discussion] aznmode:
I searched for aggregate LTE and I was confused when it showed "carrier" integration and I assume carrier meant providers. But I get it now. Thanks for the reply.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] flak0:
Will this work with unlocked?
[Samsung Galaxy Note 10+ Guides, News, & Discussion] johnronin:
Has there ever been an attempt to sue AT&T since they force you to buy from them...and disable phone's features that you pay for but can't use due to having an unlocked phone?
[Samsung Galaxy Note 10+ Guides, News, & Discussion] Mr. Orange 645:
No

1. They DON'T force you to buy from them. You can buy just about any unlocked device and use it on ATT. For example the Google Pixel or any of the Samsung Galaxy phones.

2. They haven't disabled anything on your phone. But they have a right to determine which phone features will work on their Network. Unless you are paying a separate fee for WiFi calling or VoLTE, then they aren't disabling anything that your paying for. They simply require you to use an ATT branded device to access certain free features.

Does it suck that you have to have an ATT branded device? Sure. Is it illegal. Absolutely not.

By the way, ALL the carriers do this to an extent. Sprint won't hardly activate a phone on their Network that isn't a Sprint branded device. I think they've eased those restrictions, but just a couple years ago with the Note 8, they had a very strict list of BYOD devices.

WiFi calling and VoLTE works on T-Mobile with an unlocked device, but RCA messaging and video calling from the stock dialer does not.

I'm not sure about Verizon, but I believe not all of their features work with the unbranded firmware either.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] beethoven1854:
I flashed my unlocked Note 10 Plus to the ATT U firmware. I am using ATT prepaid. Right now ATT wifi calling doesn't work with Note 10 Plus but it does work for S10 Plus (and previous models). I am pretty sure this is because the Note 10 is still very new and their system needs some update. I will wait a couple weeks and see what happens.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] Lostwarriorram:
I guess, this is my pain point with almost ALL US carriers. When they advertise BYOD and charge me 100% of service fee for the plan I choose as anybody else who bought the phone from them, I am expecting 100% of features available to the BYOD (of course if the device supports).

When I travel to European or Asian countries, they have no problems enabling all the features that their network support on the phone that we bring (including prepaid plans). It feels liberated when using my phone in other countries.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] Mr. Orange 645:
I understand that completely. Unfortunately, I'm sure somewhere in the fine print, you'll find that some features are not supported on every phone. It's a way to get you to the carrier branded phone that has their apps, which I guarantee are monetized in some way.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] Lostwarriorram:
Agreed. These carriers will be surprised how many people will be willing to buy (full price) from them if the phones are truly unlocked and capable of using their and other carrier's network's fullest features. For now, they seems to be just focusing at the bottom line numbers for each quarter.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] cubano2031:
Here what I've been doing...i flash the U firmware to my new unlocked Note 10 + ,after that i call att and give then a old iPhone imei to out under my account and viola! Wifi calling,volte and visible voicemail work! I have ATT prepaid by the way
[Samsung Galaxy Note 10+ Guides, News, & Discussion] jcrompton:
Just curious , I've accomplished the same thing previously using the business Premier website but they recently switched me to a myATT site and I don't see where to change IMEIs myself

So what exactly do you tell them when you call?
[Samsung Galaxy Note 10+ Guides, News, & Discussion] xAliasx:
Could you please link to the firmware you used?

I switched to the unlocked Note 10 plus from my AT&T Note 8 and see signal strength as lower.

Does flashing the AT&T firmware help with the signal strength?
[Samsung Galaxy Note 10+ Guides, News, & Discussion] beethoven1854:
I am not sure if flashing the AT&T firmware would help with the signal strength. The signal icon that you see doesn't tell you much. It is better to use a third party tool to test the exact signal strength.

Link the firmware:

https://xdaforums.com/galaxy-note-10+/how-to/n975u-n975u1-firmware-links-t3957648
[Samsung Galaxy Note 10+ Guides, News, & Discussion] Lostwarriorram:
I thought, this is temporary fix since at some point in time, AT&T system will pickup your Note10+ IMEI and automatically remove those features. Maybe, this is not true for prepaid?
[Samsung Galaxy Note 10+ Guides, News, & Discussion] xAliasx:
Thank you for the link. Went ahead and did the firmware flash and now i get more bars as well as WIFI calling option. :good:
[Samsung Galaxy Note 10+ Guides, News, & Discussion] sikclown:
It is a temporary fix. I managed to get my Unlocked S10+ flashed with AT&T Rom on the network with VoLTE, WifiCalling, still by giving them the IMEI of a Note 9 I have. That worked for a grand total of 10 minutes before my IMEI switched back. It is possible they are more relaxed with Prepaid; I think eventually they will have to at least allow VoLTE on unlocked phones since they are moving to all LTE but no clue when that will happen.

I have been bouncing around carriers to test (I have been on Sprint for 20 years) and AT&T is the worst for unlocked Samsungs. Sprint is the best, the unlocked required no firmware to get all features and Visual Voicemail is an app in Google Play. T-Mobile comes in second place for much the same reasons but you lose the aggregation in so far as I can tell without their firmware. Verizon third, what works is hit and miss but better than AT&T. And then finally AT&T, on my unlocked I did not have VoLTE, HD Audio, Video Calling, Wifi Calling, and Visual Voicemail ( Also their stupid Advanced Messaging). After flashing Visual Voicemail and Advanced Messaging were the only things that worked. Video Calling showed up as well but I was never able to test it.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] beethoven1854:
I have been using this method for my S10 plus. It has been working fine (about a year now) until I switched to the Note 10 plus yesterday. Wifi calling doesn't work on the Note 10 plus and it stopped working for my S10 plus too.

After many phone calls with ATT, I finally got my Wifi calling working on my Note 10 plus despite ATT saying it is not possible. What I did was inserted my SIM to an old iPhone that I have and then inserted my SIM back to the Note 10 plus and Wifi calling started to work right after that. I have a feeling this tricked the system and it thinks I am using the iPhone but I am actually using the Note 10 plus. Hope this will last like my S10 plus did.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] Lostwarriorram:
Thank you for an excellent summary. I am with AT&T for the past 14 years. I have been using unlocked Samsung phones for the past 8 years and missing all these features in the intention that AT&T will eventually turnaround and accept true BYOD concept. I gave up and ready to go to Verizon with Note 10+. Surprisingly, everything (or most of it) works in an unlocked iPhone (VZW phone) on AT&T network.

As much as I like to use these fancy features, I would like to make sure I have reliable basic phone functionalities (hence going to Verizon) when I travel across the US. Fingers and toes crossed that everything works in unlocked Note 10+ when I port to VZW.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] sikclown:
That trick doesn't work with Post Paid. I guess they don't do IMEI checks on prepaid (or at least not as often). As I said on Post paid I can only manage to get an Flashed unlocked phone on VoLTE and Wifi Calling for about 10 minutes max. Come to think of it I think when I tested the network on pre paid on my Note 9 unlocked most things were working.

Update:

I tried my Unlocked s10+ (with ATT ROM) with my newly activated Note 10+ ATT version sim card and VoLTE works UNTIL I activate Wifi Calling. Once I activate that all features stop working. Wifi Calling must trigger an IMEI check (on Post Paid) but VoLTE does not.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] Kohawk09:
Did you flash the att firmware first to get the wifi calling to work?
[Samsung Galaxy Note 10+ Guides, News, & Discussion] skeet09:
How did you flash your unlocked note 10 plus? and where did you find the att firmware? can you help me out with some steps and instructions please.
[Samsung Galaxy Note 10+ Guides, News, & Discussion] jcrompton:
See this thread

https://xdaforums.com/galaxy-note-10+/how-to/n975u-n975u1-firmware-links-t3957648
[Samsung Galaxy Note 10+ Guides, News, & Discussion] tommyloui:
For what its worth I've spent a lot of time on this. First off I have not flashed the firmware yet, that is because I have read conflicting statements here some people say it works fine others say after a while it stops. I do think I know why though.

If you log into your AT&T account and click on manage your devices then over you actual phone icon click manage my device. I will show the name you assigned to that device, under that the phone number and under that it will say Unknown Device BUT under that is a box that says Choose another device if you click on the down arrow (where it shows all the devices on your account) in the list of devices you will notice something very strange for your phone it will show Your name for and phone number like previously stated BUT then it will say in bold print all in capital letters " SAMSNG D2" Not the Note 10+ (Just a FYI I have searched and the only thing I found that is a D2 is this https://www.gadgetsnow.com/compare-mobile-phones/10or-D2 )

After many conversations with customer service they talked with Samsung after I pointed this issue out they said the problem is "This Range of IMEI numbers are not listed in the Provider Database for the USA" They would have to submit this via a supervisor and that would take about 2 weeks! after that would be done then all providers in us / north america will recognize the device correctly. I don't know if this is fact or not BUT I do know that the AT&T system shows our Note10+ unlocked devices as D2.

I am desperatly working with people I know there to see if they can correct this as I have used OnePlus 1, One Plus 3, PIxel 1xl & Pixel 3xl with NO Problem. and all features work and all of those devices were unlocked! I do know that currently no matter what my display says on the phone LTE or NOT all data and all phone calls are connecting thru the towers at 3g ONLY! NO Volte, NO WIFI calling, No Advanced text messaging.

I would very much like to hear from anyone that has flashed to the AT&T firmware with the Note 10+ that the features work and keep working and that they don't get removed and that Calls and data is 4G LTE not 3G.

If it does work please also tell me what you did, although I have flashed previous phones I an wanting to be careful so I don't Trigger Knox I have read https://xdaforums.com/galaxy-note-10+/how-to/n975u-n975u1-firmware-links-t3957648 and located the proper AT&T firmware but as the post states it does not have a "Beginners Guide for Odin Flashing and I do not want to brick my device.

I hope this provides some useful information the last I have heard is that they do NOT support this device but I'm working on it. Thanks
[Samsung Galaxy Note 10+ Guides, News, & Discussion] jcrompton:
I have a very long history of using unlocked devices on AT&t

the only ones that actually work right out of the box are the latest pixels

The European devices required firmware change and often changes to the CSC, and sometimes even required root to access a file within the system EFS folder

But pretty much all of the devices required AT&t to have a known IMEI in their system. previously as a business user I was able to change my own IMEI but it is my understanding that non-business users have been able to call AT&t and give them an IMEI from an old AT&t phone, one that natively has calling features working. But the bottom line is that once I got the proper IMEI in AT&t system then my device would work.

In my current case I had my SIM card in a note 9 phone that was AT&t branded. After I flashed my AT&t u firmware on my unlocked Note 10 plus I took the SIM card out and placed it in the Note 10. My calling features continue to work but I did notice that my phone still showed up as a note 9 in AT&t system. It has continued to work flawlessly for the two weeks that I have on the phone. I'm not going to say that it will continue to work but at least this far it has
[Samsung Galaxy Note 10+ Guides, News, & Discussion] disturbd1:
Can anyone attest to a successful and consistent enabling and continued use of AT&T carrier features on the unlocked devices? I went through this ordeal when I bought my wife's Note 10, upon launch. Tried using an old SIM, tried inserting her SIM into her old S7 (AT&T branded), enabling calling features then swapping back the SIM into the Note 10...nothing worked.

I'm about to sell my Note 9, so I can't fall back on using it as a dummy device for "tricking" the system into thinking I'm still using that IMEI. So if anyone has found a way to successfully enable AT&T carrier features on an unlocked Note 10(+)(5G), I'll buy you a beer.
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