OTA and Non-OTA Firmware for N986U and N986U1

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keredini

Senior Member
Aug 4, 2010
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@kangi26 thanks for fixing the U1 ATT link ... flashed on my ATT phone and no more ATT bloatware ... hotspot still works!!!

EDIT: Samsung Pay is telling me my card is invalid, though it's the same card i used on my Note 9 (both on U and U1 firmwares) and two days ago on my Note 20 before I flashed U1. Not sure if related to the U1 or if Samsung thinks i'm trying to register to multiple devices and decided to block it...
 
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ahenderson223

Senior Member
Jun 2, 2010
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@kangi26 thanks for fixing the U1 ATT link ... flashed on my ATT phone and no more ATT bloatware ... hotspot still works!!!

EDIT: Samsung Pay is telling me my card is invalid, though it's the same card i used on my Note 9 (both on U and U1 firmwares) and two days ago on my Note 20 before I flashed U1. Not sure if related to the U1 or if Samsung thinks i'm trying to register to multiple devices and decided to block it...


The same thing happen to me when I was adding my primary debit card to Samsung pay. It happened when I was on the stock AT&T software as well. It let me add other cards though.
 

naim1234

Senior Member
Oct 3, 2013
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I am hearing that AT&T will eventually allow all the carrier features on the samsung unlocked devices anyway.. Now with the hotspot, does the US unlocked hotspot not go against our usage if our plan has hotspot already included? For example, I have 10 GB hotspot in my plan but if i use hotspot on my N20 ultra will it count against 10 GB or just be seen as regular data usage?
 

streetracer8605

Senior Member
Sep 20, 2008
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See Post #2 for the Links to the Firmwares (When they start to become available)


Tips on flashing U1 Firmware thanks to @mm60 for being the guinea pig and doing the base write up

Flash the U1 firmware, which you can get on Frija. Make sure you use the patched ODIN linked in post #2, Odin3_v3.13.3b.
Boot up the phone with an active US Carrier SIM installed.
Go through the initial setup and connect to Wi-Fi.
When the pop-up saying that the phone "needed to apply carrier settings and reboot", agreed and let it reboot.
Once the phone reboots, go through the setup and verify the Service Provider is your carrier (VZW/SPR/TMB/ATT, etc) is in the Settings.
Flashed the U firmware again with the USERDATA file and set it up again (The USERDATA file is Carrier agnostic. The carrier features/apps will be installed based on the active carrier SIM that's installed when it's flashed)

Thank you and mm60 so much for this. I couldn't figure out how to get back on the unlocked firmware with Frija but I managed to get the unlocked XAA firmware from SamMobile. I downloaded that and the used your pacthed Odin3 v3.13.3b to flash it. I let it run the initial set up and let it activate with T-Mobile and then reboot. I went through the basic setup, checked that I was indeed connected to T-Mobile, and then went back into the bootloader screen. I downloaded the old T-Mobile firmware from SamMobile (TGM) and flashed it along the TMB userdata. Sure enough, it booted to the T-Mobile splash screen and the T-Mobile prompts for their apps were there. I sued the TGM firmware to check if the OTA would officially work, and once I clicked to check for software update sure enough it said there was one officially through T-Mobile. I did the update, factory reset the phone, and then used SmartSwitch to bring all my call logs, text, wallpaper, apps, etc... back. Thank you guys so much for the help. Who knew that it would make such a difference that initially I just flashed the T-Mobile firmware before letting the initial unlocked software provision my T-Mobile sim. I guess I was just too excited that first day, lol. It's all good now. Thank you guys so so much.
 

Geekser

Senior Member
May 18, 2017
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In the past, there were several differances in the file name used for updated firmware (U versus U1) but it seems like with the Note's firmware, those differences are less noticable. Of course we have N965U1 compared to N965U - but if you go back and look at the firmware for the S20 Ultra, there were several other significant differences in the names used for the firmware - while with the Note firmware, they are almost identical, except for the U and U1 -

Am I completely wrong about this and more importantly, is there any real significance to this ? Probably doesn't mean anything, but I thought I would ask what your thoughts are about this ---- (or am I just crazy to ask ?) :)
 

butchieboy

Senior Member
Feb 15, 2012
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What carrier do you have? If you have At&t of course you can flash it. It is At&t unlocked firmware. Is your device U1 or U? The U firmwares are the same. When flashed they will provision to your sim. Usually unlocked firmware you do not have wifi calling and have to flash U csc to get wifi calling. But when you do that you lose software update toggle in settings.

Sent from my SM-N986U using Tapatalk
 
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todd3835

Senior Member
Feb 13, 2008
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Wondering whats the difference between home csc and only csc?

Home doesn't wipe. Regular forces a wipe.

---------- Post added at 07:08 PM ---------- Previous post was at 06:59 PM ----------

Can I just flash the ATT firmware from POST #2 ? I want OTA and Samsung Pay to work with ATT features. I am ok with extra apps.

You can flash any firmware to any device of the same model. Even swapping between U and U1 in either direction.

Samsung pay will work regardless.

OTA will work as long as you flash all of the U, and flash to a version released by ATT. If you flash a version they skip, it'll break your OTA until you flash something att has released.

As for features its hit or miss. My Note 10 U1 plus couldn't get VOLTE or Wifi calling, even on U. They need to white list the imei which they don't typically do. Very much a YMMV. A little late now but if you're planning on using att your better off buying an ATT U device than unlocked. I switched to t-mobile for that reason
 

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  • 5
    I just flashed the latest U1 build to my ATT U, and it flashed correctly, I got the unlocked version features like the integrated spam call blocker. Now in settings it still shows ATT/ATT/ATT, did I make something wrong? I wanted to get the full unlocked experience and just use the att network. Also I'm seeing that my 5G icon is the ATT branded one.. So I'm kinda confused. Flashed the csc partition and not the home csc.
    Not sure if someone already answered this and sorry to all my amazing friends here that i am not able to be online as often. Hope you all are doing well.

    So your ATT/ATT/ATT lets represent it as 1/2/3 - Now /3 is something you can not change - so if you bought from ATT it will be 1/2/ATT if from T-mob it will be 1/2/TMB - So that always remains same.
    for 1/2 it depends on the sim card you insert, it seems you are using ATT sim. I have unlocked version so my /3=/XAA , as stated above it remains same regardless of sim i insert, and i am using TMB so my 1/2 = TMB/TMB if i was using ATT it would look like ATT/ATT/XAA. Hope this answers your question.
    3
    Please take a look at the OP, it'll answer that for you :)
    embarrassing! Not at the top easily available to everyone. Sorry for not reading. The best place to hide things from me is right in front of my face.
    3
    Ok, so I did get really bored and flashed U1. To be 100% honest if you put the device in front of me with Carrier/Unlocked firmware, I couldn't tell the difference. Aside from the bootscreen animations and actually looking in the actual firmware revision I genuinely can't tell ANY difference.
    2
    DUBB, March Security patch 254mb. It's also bootloader 2, so if you update to it there is no going back to any of the previous firmware (Incl the U1 bl1 firmware)
  • 18
    See Post #2 and #3 for the Links to the Firmware
    ALL of the firmware posted here can be flashed on any N986U/N986U1 Device. The firmware is NOT carrier dependent and is only listed next to some of them in order to have an idea if you might get OTA when you flash it

    Understanding Firmware naming:

    N986USQU1ATGM
    N=Note
    986U or F etc, the model of device
    SQ, FX etc = CPU and model specific
    U,S,E = Update, Security, Engineering, respectively
    1,2,3,4,5 etc = bootloader revision (This is important! You cannot go to a previous revision)
    A,B,C,D = Android version
    T, U = Year (T=2020, U=2021 etc)
    A,B,C etc = month (January A - December L)
    1 - 9 and then A - Z =build compilation. This basically means how many builds there are in a month. They start at 1 and go to Z
    So N986USQU1ATGM would be
    N968-U-SQ-U-1-A-T-G-M
    N968U (Note 20 Ultra Carrier version), SQ (Snapdragon), U (Update), 1 (Bootloader version), A (Build 10), T (2020), G (July), M (22nd build)

    How to enter Download Mode:
    Turn off the device.
    Connect USB cable to your PC (Leave it disconnected from the phone)
    Press and hold down the Volume Up and Volume Down buttons. While they are still pressed, plug in the USB cable into your phone.
    The phone will go into download mode press volume up. In Odin you will see that phone is added.

    Dirty Flash:
    I would only do this if you are having to manually update to the newer firmware and would not do it if you are coming/going to U/U1 or from beta firmware or if you are on an old firmware. I'd also highly recommend doing a back up prior to the doing this
    Load these into Odin
    BL
    AP
    CP
    HOME_CSC
    Do NOT flash CSC or USERDATA, either of these WILL wipe your device
    This is a "dirty flash" and these can sometimes cause issues. Keep in mind if things start going sideways and stuff starts not working right, your first step to a solution will be to wipe the device.


    Tips on flashing U1 Firmware:
    Thanks to @mm60 for being the guinea pig and doing the base write up

    Flash the U1 firmware, which you can get on Frija. Make sure you use the patched ODIN linked in post #2, Odin3_v3.13.3b.
    Boot up the phone with an active US Carrier SIM installed.
    Go through the initial setup and connect to Wi-Fi.
    When the pop-up saying that the phone "needed to apply carrier settings and reboot", agreed and let it reboot.
    Once the phone reboots, go through the setup and verify the Service Provider is your carrier (VZW/SPR/TMB/ATT, etc) is in the Settings.
    Flashed the U firmware again with the USERDATA file and set it up again (The USERDATA file is Carrier agnostic. The carrier features/apps will be installed based on the active carrier SIM that's installed when it's flashed)

    If you get your CSC Stuck on XAA/XAA/(Insert your carrier here), and can not get Carrier options back.
    Go to the tutorial that @borijess put together HERE
    17
    N986U - Carrier Versions

    N986USQU2DUCA CCT/USC/CHA
    N986USQU2DUC5 VZW Bootloader 2
    N986USQS2DUC1 CCT Bootloader 2
    N986USQS2DUBB AT&T/USC MIRROR thanks @Venom0642 Bootloader 2
    N986USQU1DUB7 VZW Thanks to @drewiskee for grabbing this N986USQSU2DUBB
    N986USQU1DUB5 ATT/SPR/TMB/CCT/CHA Thanks for the link @Venom0642
    N986USQS1CTLC VZW/CHA/USC January Patch
    N986USQS1CTLB TMB/ATT/SPR. MIRROR Thanks @Venom0642
    N986USQU1CTLA VZW Second December Patch Thanks @Venom0642
    N986USQU1CTL4 VZW Android 11 MIRROR Thanks for the link @denson9874
    N986USQU1CTL2 ATT/TMB/SPR/CCT Android 11. Thanks @dottat. MIRROR thanks @Venom0642
    N986USQS1BTK3 SPR/TMB/USC
    N986USQS1BTJ8 VZW
    N986USQU1BTJ4 SPR/TMB
    N986USQU1BTJ3 VZW/USC
    N986USQU1BTJ2 VZW
    N986USQU1BTIF ATT - To Flash this put the ALL_OYN file in the AP slot. The AT&T USERDATA, that goes in it's "regular" slot. Thanks to @Venom0642 for this file and to @butchieboy for sending one my way
    N986USQU1BTIB VZW/CHA Thanks @Venom0642
    N986USQU1ATI6 USC
    N986USQU1ATI5 SPR/TMB - Thanks @Venom0642
    N986USQU1ATH4 USC/TMB/SPR Aug Security - Thanks @Venom0642
    N986USQU1ATH3 ATT/SPR/TMB/VZW/CCT Aug Security
    N986USQU1ATGM SPR/USC/CCT/TMB


    Odin3_v3.13.3b: HERE
    8
    N986U1 - Unlocked Versions

    N986U1UEU2DUCB
    N986U1UES2DUC8
    N986U1UES2DUC1 This is the 1st firmware on BL 2, if you update to this, there is no flashing to ANY BL1 firmware, INCLUDING carrier versions not on BL2
    N986U1UEU1DUB5
    N986U1UES1CUA1
    N986U1UEU1CTLB
    N986U1UES1CTL7
    N986U1UEU1CTL4
    N986U1UES1ATK1
    N986U1UES1ATJ5
    N986U1UES1ATJ3
    N986U1UES1ATID
    N986U1UEU1ATI5
    N986U1UES1ATI1
    N986U1UEU1ATH3


    Odin3_v3.13.3b: HERE
    5
    Big Update AT&T Note20 Ultra live .
    5
    Uploading U1 CTL4 now. I'll have a OP link shortly

    Edit***
    Took all the time to upload it, and it failed at the last min.......:mad:
    Uploading....... AGAIN
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