[Guide] - Odin Upgrading / Flashing and N986U to N986U1 & Vice Versa

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warriorvibhu

Inactive Recognized Developer
Aug 28, 2007
1,364
279
Somewhere Amazing
HTC One (m7)
LG V10
WARNING - Samsung has upgraded to Bootloader 2, if you are on bootloader 2 you can not flash U to U1 or U1 to U until a solution is found
INTRODUCTION - Firstly sorry for posting this as this is common knowledge for many. I still see so many people asking the same questions again and again and i do want to help so decided to write a guide.
If you have Odin Flashing questions please ask here. I have converted a device from U to U1 (just for fun) so i know this works, many other users have confirmed this too.
PART 1

Pre-Requisites - PC / Laptop, USB Cable, Phone
Switch on USB Debugging from Developer options. To turn on developer options go to Settings>>About Phone>>Software Information>> Then tap the build number 7 times - Developer options will appear at the bottom of Settings Menu.

HOW TO - N986U to N986U1 and or Flash ATID or Flash Any Odin compatible ROM
1. If you want to flash or update to One UI 3 Beta then Download the ATID Firmware here.
For changing Carrier locked device to Unlocked Firmware (N986U to N986U1) Download the firmware for U1 from OTA Thread or by using Frija

If you are Flashing One UI 3 Stable download the appropriate firmware. There are many resources for that, there is a thread in the N20 Ultra forums, there are tools like Frija and SamFW and more, then there are various websites. Where you are downloading from is your outlook just ensure you download Odin compatible ROM.

2. Download Patched Odin here
3. Unpack/Unzip what you downloaded in Step 2 (Odin Compatible ROm) and put in a folder. Lets call the folder "Flash"
4. Run Odin, click on BL, Browse to the "Flash" folder, add BL file from there, Do the same for AP (click on AP, Add AP file, this will take some time), Same for CP (click on CP, Add CP file)
5. Do the same for CSC (click on CSC, Add the file with the name starting with Home_CSC). If you use Home_CSC your phone will not get formatted and data will remain Intact
USERDATA Stays empty.
6. Now connect USB cable to your laptop (Only laptop and not the phone)>> Turn off your phone >> Press volume up and volume down keep them pressed and plug in the USB type C into your phone.
7. You should be in download mode now, press volume up. In Odin you will see that phone is added.
8. Press start in Odin. Wait for it to finish and let the phone restart (it will happen On its own).
9. Done

PART 2
HOW TO - N986U or N986U1 Latest Security Patch or Firmware upgrade / downgrade
1. Download the firmware for Corresponding device - For example if you are on SM-N986U1 then download for U1. If you are N986U locked to TMB, VZW, SPR etc etc download the firmware for U device and your Own CSC from OTA Thread or by using Frija or SamFirm tool.
2. If downloaded using Frija or SamFirm Tool it will be in a compressed folder (ZIP). Extract the firmware files in a folder, lets call it "Flash"
Follow the rest of the steps from Step 4 Above.

FAQ
Can I get E-Sim with this ?
If you are doing this to get E-Sim capability that t-mobile just added
here is a post from someone who converted their phone to T-Mobile version.


WARNING - If for some reason you use ODIN to Flash back to Android 10 after being on Android 11, YOU WILL LOSE YOUR DATA
This is not a guide for Downgrading by whole Android Iteration as in Going from Android X to Android (X-1) or Android (X-2) ____ Versions
 
Last edited:

TuxPenguin98

New member
Nov 6, 2020
2
0
I am having trouble with flashing the firmware onto my device. I am trying to convert my SM-N986U to SM-986U1 but every time I try to flash it I get an error. I have everything downloaded and prepared for it but I keep getting errors.
 

warriorvibhu

Inactive Recognized Developer
Aug 28, 2007
1,364
279
Somewhere Amazing
HTC One (m7)
LG V10
I am having trouble with flashing the firmware onto my device. I am trying to convert my SM-N986U to SM-986U1 but every time I try to flash it I get an error. I have everything downloaded and prepared for it but I keep getting errors.
What are the errors?
Yes tell us more, what are the errors you are getting?
 

GDHAMTON7

Senior Member
Jan 30, 2013
117
9
So I'm kinda nervous. I got a message that ATID didn't like the current build. Said error when booted. Only options were to try again, factory reset, or view logs. I have the sm-n986u1
 

warriorvibhu

Inactive Recognized Developer
Aug 28, 2007
1,364
279
Somewhere Amazing
HTC One (m7)
LG V10
So I'm kinda nervous. I got a message that ATID didn't like the current build. Said error when booted. Only options were to try again, factory reset, or view logs. I have the sm-n986u1
ATID didn't like the current build?? Never heard of that error. Do you have a screenshot. How did you flash? Did you use Odin? You can always try again.. And worst case force reboot your phone..

Sent from my SM-N986U1 using Tapatalk
 

GDHAMTON7

Senior Member
Jan 30, 2013
117
9
ATID didn't like the current build?? Never heard of that error. Do you have a screenshot. How did you flash? Did you use Odin? You can always try again.. And worst case force reboot your phone..

Unfortunately I didn't get a screenshot but it said something like there was an error with files or something. Either way I had a back up. I was already on the regular atj5 build on android 10. It is all working now.
 

warriorvibhu

Inactive Recognized Developer
Aug 28, 2007
1,364
279
Somewhere Amazing
HTC One (m7)
LG V10
I have been trying to odin my att note 20 ultra to the t-mobile firmware, so far I've only been able to get it to boot like it is the unlocked version, and can't find the reason
I dont know anyone who has done such a thing but i guess there is a use case for everything. Have you tried flashing unlocked Variant first and then Odin to T-Mobile.
 
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Reactions: c-prodigo

c-prodigo

Senior Member
Dec 4, 2010
1,423
553
Delaware
Samsung Galaxy Note 20
that's exactly what I did, I switched from att to t-mobile, and first I wanted to see how the unlocked version would work, now I want to try the t-mobile firmware, but after downloading the one that says t-mobile and using odin, the phone stays on the unlocked firmware
 

rjohnstone

Senior Member
that's exactly what I did, I switched from att to t-mobile, and first I wanted to see how the unlocked version would work, now I want to try the t-mobile firmware, but after downloading the one that says t-mobile and using odin, the phone stays on the unlocked firmware
Which T-Mobile firmware?
If you want carrier stuff you have to change your CSC to TMB and flash U version not U1 version.
 

warriorvibhu

Inactive Recognized Developer
Aug 28, 2007
1,364
279
Somewhere Amazing
HTC One (m7)
LG V10
Which T-Mobile firmware?
If you want carrier stuff you have to change your CSC to TMB and flash U version not U1 version.
Exactly
that's exactly what I did, I switched from att to t-mobile, and first I wanted to see how the unlocked version would work, now I want to try the t-mobile firmware, but after downloading the one that says t-mobile and using odin, the phone stays on the unlocked firmware
Hope you downloaded a U firmware and not U1, CSC can be T-mobile on U1 too so make sure you download U firmware and hope you are not confusing CSC with T-Mobile firmware
 

mariuszsnit

New member
Mar 16, 2021
1
0
I am trying to switch from U1 to U VZW brand. I get this error

<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/007> Added!!
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/007> Odin engine v(ID:3.1401)..
<ID:0/007> File analysis..
<ID:0/007> Total Binary size: 9881 M
<ID:0/007> SetupConnection..
<ID:0/007> Initialzation..
<ID:0/007> Set PIT file..
<ID:0/007> DO NOT TURN OFF TARGET!!
<ID:0/007> Get PIT for mapping..
<ID:0/007> Firmware update start..
<ID:0/007> NAND Write Start!!
<ID:0/007> SingleDownload.
<ID:0/007> abl.elf
<ID:0/007> xbl.elf
<ID:0/007> FAIL! (Auth)
<ID:0/007>
<ID:0/007> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
<ID:0/007> Removed!!
 

znel52

Senior Member
  • Jun 3, 2010
    563
    158
    I am trying to switch from U1 to U VZW brand. I get this error

    <OSM> Enter CS for MD5..
    <OSM> Check MD5.. Do not unplug the cable..
    <OSM> Please wait..
    <OSM> Checking MD5 finished Sucessfully..
    <OSM> Leave CS..
    <OSM> Enter CS for MD5..
    <OSM> Check MD5.. Do not unplug the cable..
    <OSM> Please wait..
    <OSM> Checking MD5 finished Sucessfully..
    <OSM> Leave CS..
    <ID:0/007> Added!!
    <OSM> Enter CS for MD5..
    <OSM> Check MD5.. Do not unplug the cable..
    <OSM> Please wait..
    <OSM> Checking MD5 finished Sucessfully..
    <OSM> Leave CS..
    <OSM> Enter CS for MD5..
    <OSM> Check MD5.. Do not unplug the cable..
    <OSM> Please wait..
    <OSM> Checking MD5 finished Sucessfully..
    <OSM> Leave CS..
    <ID:0/007> Odin engine v(ID:3.1401)..
    <ID:0/007> File analysis..
    <ID:0/007> Total Binary size: 9881 M
    <ID:0/007> SetupConnection..
    <ID:0/007> Initialzation..
    <ID:0/007> Set PIT file..
    <ID:0/007> DO NOT TURN OFF TARGET!!
    <ID:0/007> Get PIT for mapping..
    <ID:0/007> Firmware update start..
    <ID:0/007> NAND Write Start!!
    <ID:0/007> SingleDownload.
    <ID:0/007> abl.elf
    <ID:0/007> xbl.elf
    <ID:0/007> FAIL! (Auth)
    <ID:0/007>
    <ID:0/007> Complete(Write) operation failed.
    <OSM> All threads completed. (succeed 0 / failed 1)
    <ID:0/007> Removed!!
    Are you trying to go from the unlocked 3.1 DUC1 build to VZW firmware? They updated the bootloader from BL1 to BL2 on DUC1 so we are not able to roll back to anything older. The VZW firmware is still on BL1.

    If that is the case will have to wait for VZW to release new firmware with BL2 before you can switch. My guess would be it will be included in next months security patch update.
     
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    Reactions: rjohnstone

    dj24

    Senior Member
    Jun 23, 2018
    81
    10
    Samsung Galaxy Note 20 Ultra
    Great guide to people like me that are thinking about dipping their toes in for the first time when it comes to flashing. I do have a question or two though:

    What are the advantages of flashing from a U device to the unlocked U1 version? For instance I have the T-mobile U version and I have for the most part uninstalled all the carrier bloatware that came with it and put the ones that I couldn't into deep sleep so my battery life for the most part is unaffected. I also got it unlocked when I first got it since I paid outright for it. I notice most people also like getting updates faster and flashing enables them to do so but I honestly don't mind waiting for the slower OTA ones.

    I guess I'm looking for a reason to do this (bored too) and use it as a learning process as well to gain the experience since I've never flashed before. Are there any settings or features in the U1 devices that I can't get from the play store that I can get by flashing? The only feature I truly miss is call recording but I don't think anyone has been able to figure that out yet..
     

    znel52

    Senior Member
  • Jun 3, 2010
    563
    158
    Great guide to people like me that are thinking about dipping their toes in for the first time when it comes to flashing. I do have a question or two though:

    What are the advantages of flashing from a U device to the unlocked U1 version? For instance I have the T-mobile U version and I have for the most part uninstalled all the carrier bloatware that came with it and put the ones that I couldn't into deep sleep so my battery life for the most part is unaffected. I also got it unlocked when I first got it since I paid outright for it. I notice most people also like getting updates faster and flashing enables them to do so but I honestly don't mind waiting for the slower OTA ones.

    I guess I'm looking for a reason to do this (bored too) and use it as a learning process as well to gain the experience since I've never flashed before. Are there any settings or features in the U1 devices that I can't get from the play store that I can get by flashing? The only feature I truly miss is call recording but I don't think anyone has been able to figure that out yet..
    It mostly comes down to bloat and unlocked devices being eligible for beta programs. They used to do beta programs for some carriers but it seems to be happening less.

    For the most part there isn't much difference. I've been toying with the idea of switching my unlocked to Verizon firmware to get RCS which Verizon recently activated for several Samsung devices. Was hoping it would come for the unlocked phones but doesn't look like it will. Haven't heard anything about the google/samsung RCS partnership in months.
     

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    • 1
      Well, as a guy with a SM-986U1, I can tell you that you'll LOSE eSIM / dual SIM functionality.
      That's the reason I bought this phone (Amazon) instead of the S21. I read that it was eSIM enabled on T-Mo. But not mine.
      You're right. Flashing back to UI is not an option for me anymore since I'm now utilizing the dual sim feature in a different country. What's really surprising is how slow t-mobile has become since the sprint merger in pushing out updates. They've literally fallen asleep and we're still stuck on the March 1 Security update. I'm giving them the benefit of the doubt for now since they did activate the dual sim feature for us last time around and am hoping for more goodies like dual recording feature for the next one. Hopefully it'll be sometime in 2021 :)
      1
      That's interesting Shaun, if memory serves me correctly back in the days the sim unlocked Samsung devices would brand switch only when changing SIM cards. The unlocked by Samsung U1 ones didn't.

      Edit. Memory obviously doesn't serve me correctly. 🤣
      Well, I also have memory lapses, and it's been a couple of months, but I think in this case I was ASKED if I wanted some T-mo bloat, and I chose yes because I like a few of their features (and mistakenly thought it would give me eSIM.)
      1
      Hi I have a note 20 Ultra from Xfinity. I paid it off, and got it unlocked. I would like to get rid of the bloatware also change apn settings. I have the N986USQSDUE2 and the latest july patch update from samsung. Can I switch to U1 factory unlocked? since it looks like booatloader 2? what version of U1 do i need?
      If you're on bootloader 2 then you'll need bootloader 2 U1.
    • 3
      WARNING - Samsung has upgraded to Bootloader 2, if you are on bootloader 2 you can not flash U to U1 or U1 to U until a solution is found
      INTRODUCTION - Firstly sorry for posting this as this is common knowledge for many. I still see so many people asking the same questions again and again and i do want to help so decided to write a guide.
      If you have Odin Flashing questions please ask here. I have converted a device from U to U1 (just for fun) so i know this works, many other users have confirmed this too.
      PART 1

      Pre-Requisites - PC / Laptop, USB Cable, Phone
      Switch on USB Debugging from Developer options. To turn on developer options go to Settings>>About Phone>>Software Information>> Then tap the build number 7 times - Developer options will appear at the bottom of Settings Menu.

      HOW TO - N986U to N986U1 and or Flash ATID or Flash Any Odin compatible ROM
      1. If you want to flash or update to One UI 3 Beta then Download the ATID Firmware here.
      For changing Carrier locked device to Unlocked Firmware (N986U to N986U1) Download the firmware for U1 from OTA Thread or by using Frija

      If you are Flashing One UI 3 Stable download the appropriate firmware. There are many resources for that, there is a thread in the N20 Ultra forums, there are tools like Frija and SamFW and more, then there are various websites. Where you are downloading from is your outlook just ensure you download Odin compatible ROM.

      2. Download Patched Odin here
      3. Unpack/Unzip what you downloaded in Step 2 (Odin Compatible ROm) and put in a folder. Lets call the folder "Flash"
      4. Run Odin, click on BL, Browse to the "Flash" folder, add BL file from there, Do the same for AP (click on AP, Add AP file, this will take some time), Same for CP (click on CP, Add CP file)
      5. Do the same for CSC (click on CSC, Add the file with the name starting with Home_CSC). If you use Home_CSC your phone will not get formatted and data will remain Intact
      USERDATA Stays empty.
      6. Now connect USB cable to your laptop (Only laptop and not the phone)>> Turn off your phone >> Press volume up and volume down keep them pressed and plug in the USB type C into your phone.
      7. You should be in download mode now, press volume up. In Odin you will see that phone is added.
      8. Press start in Odin. Wait for it to finish and let the phone restart (it will happen On its own).
      9. Done

      PART 2
      HOW TO - N986U or N986U1 Latest Security Patch or Firmware upgrade / downgrade
      1. Download the firmware for Corresponding device - For example if you are on SM-N986U1 then download for U1. If you are N986U locked to TMB, VZW, SPR etc etc download the firmware for U device and your Own CSC from OTA Thread or by using Frija or SamFirm tool.
      2. If downloaded using Frija or SamFirm Tool it will be in a compressed folder (ZIP). Extract the firmware files in a folder, lets call it "Flash"
      Follow the rest of the steps from Step 4 Above.

      FAQ
      Can I get E-Sim with this ?
      If you are doing this to get E-Sim capability that t-mobile just added
      here is a post from someone who converted their phone to T-Mobile version.


      WARNING - If for some reason you use ODIN to Flash back to Android 10 after being on Android 11, YOU WILL LOSE YOUR DATA
      This is not a guide for Downgrading by whole Android Iteration as in Going from Android X to Android (X-1) or Android (X-2) ____ Versions
      2
      Another reason to switch to U1 firmware is the ability to get access to features that are disabled on carrier versions.
      I went to U1 firmware so I could enable "Call and text on other devices" and get rid off the carrier bloat.
      This is disabled on AT&T and Verizon versions... not sure about T-Mobile/Sprint devices.
      2
      I've been using the u1 version on my u from att after like a month and it's been working great. I also got the april security patch on the 1st so it's definitely being great.
      1
      I have been trying to odin my att note 20 ultra to the t-mobile firmware, so far I've only been able to get it to boot like it is the unlocked version, and can't find the reason
      I dont know anyone who has done such a thing but i guess there is a use case for everything. Have you tried flashing unlocked Variant first and then Odin to T-Mobile.
      1
      I am trying to switch from U1 to U VZW brand. I get this error

      <OSM> Enter CS for MD5..
      <OSM> Check MD5.. Do not unplug the cable..
      <OSM> Please wait..
      <OSM> Checking MD5 finished Sucessfully..
      <OSM> Leave CS..
      <OSM> Enter CS for MD5..
      <OSM> Check MD5.. Do not unplug the cable..
      <OSM> Please wait..
      <OSM> Checking MD5 finished Sucessfully..
      <OSM> Leave CS..
      <ID:0/007> Added!!
      <OSM> Enter CS for MD5..
      <OSM> Check MD5.. Do not unplug the cable..
      <OSM> Please wait..
      <OSM> Checking MD5 finished Sucessfully..
      <OSM> Leave CS..
      <OSM> Enter CS for MD5..
      <OSM> Check MD5.. Do not unplug the cable..
      <OSM> Please wait..
      <OSM> Checking MD5 finished Sucessfully..
      <OSM> Leave CS..
      <ID:0/007> Odin engine v(ID:3.1401)..
      <ID:0/007> File analysis..
      <ID:0/007> Total Binary size: 9881 M
      <ID:0/007> SetupConnection..
      <ID:0/007> Initialzation..
      <ID:0/007> Set PIT file..
      <ID:0/007> DO NOT TURN OFF TARGET!!
      <ID:0/007> Get PIT for mapping..
      <ID:0/007> Firmware update start..
      <ID:0/007> NAND Write Start!!
      <ID:0/007> SingleDownload.
      <ID:0/007> abl.elf
      <ID:0/007> xbl.elf
      <ID:0/007> FAIL! (Auth)
      <ID:0/007>
      <ID:0/007> Complete(Write) operation failed.
      <OSM> All threads completed. (succeed 0 / failed 1)
      <ID:0/007> Removed!!
      Are you trying to go from the unlocked 3.1 DUC1 build to VZW firmware? They updated the bootloader from BL1 to BL2 on DUC1 so we are not able to roll back to anything older. The VZW firmware is still on BL1.

      If that is the case will have to wait for VZW to release new firmware with BL2 before you can switch. My guess would be it will be included in next months security patch update.
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