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[31.12.21] N986B I N985F/DS I Dr.Ketan ROM I OneUI 4.0 I OneUI 3.1

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RRFERA

Member
Nov 15, 2016
41
8
Here is guide how to dongrade to R* version of ROM after flashing SB* if needed.

  • Copy R* custom ROM zip on device storage/ExtSD
  • Flash stock R* and choose folloing files
  1. AP - Stock AP file from R
  2. BL & CP - Stock BL and CP files from stock
  3. CSC - Home_CSC*.tar.md5 from stock
  4. Userdata - TWRP file from R* ROM download area (that have TWRP+vbmeta)
  • Uncheck Auto reboot in Odin option and Flash
  • When flash completes - straightway flash to Recovery (here don't reboot to system else device may encrypted and needs to format data)
  • Here you will have TWRP - Now flash R* zip as usual (recommended factory reset)
Doc, one more question! I'm reading the instalation guide, on CSC folder, and I checked my CSC is N986BOW01ATHA. Can I proced with flash ROM?
 

dr.ketan

Recognized Developer / Recognized Contributor
Doc, one more question! I'm reading the instalation guide, on CSC folder, and I checked my CSC is N986BOW01ATHA. Can I proced with flash ROM?
There is no issue flashing ROM, but skip flashing CSC files. I believe there should be no issue. If any issue there then you can flash csc files but after that your CSC will be changes as it is not included in OXM group.
 

RRFERA

Member
Nov 15, 2016
41
8
There is no issue flashing ROM, but skip flashing CSC files. I believe there should be no issue. If any issue there then you can flash csc files but after that your CSC will be changes as it is not included in OXM group.
I got it! Do you know the differences between my CSC and OXM group? Sorry my questions, I'm noob and this phone is my daily phone and I can't have problems! Thanks for your work and support!!!
 

dr.ketan

Recognized Developer / Recognized Contributor
Samsung health latest version issue




 
This may be irrelevant to the rom but honestly I forgot one thing about root, there is an app I want to use and it's asking me to switch of developer mode and as you know in developer mode, OEM unlocking is turned on which basically means bootloader unlocked so if I turn off developer mode, will it turn off OEM unlocking...?
 

dr.ketan

Recognized Developer / Recognized Contributor
This may be irrelevant to the rom but honestly I forgot one thing about root, there is an app I want to use and it's asking me to switch of developer mode and as you know in developer mode, OEM unlocking is turned on which basically means bootloader unlocked so if I turn off developer mode, will it turn off OEM unlocking...?
No, turning off dev option doesn't turn off oem unlocking. When you factory reset device, dev option gets turned off right? But oem unlocking remain same enabled.
 
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No, turning off dev option doesn't turn off oem unlocking. When you factory reset device, dev option gets turned off right? But oem unlocking remain same enabled.
That's the thing, it's been a very long time since I have done any of that so I have forgotten and with a rooted Note 20 ultra device, having bootloader locked would lock me out of the phone if I ever reboot, leaving me with no choice but to wipe the phone and start over...

Hence why I am asking a ROM expert and you sir, are the biggest expert in ROMs I ever known, so if you say developer mode turned off wouldn't turn off the OEM unlocking, then I will go ahead and do it, thank you very much for everything
 

Trialer03

Senior Member
Feb 7, 2011
50
4
ChangeLog SB1 (OneUI 4.0) only for N986B


  • Based on N986BXXU3ZUK1 Nov 2021 security patch OneUI 4.0 Beta (A12)
  • SafetyNet : SafetyNet Pre-Fixed. But you needs to apply from ROM Tool. First time after reboot apply essential fix and reboot and then apply SafetyNet fix from ROM Tool - Mod & Fix - SafetyNet fix and reboot. Don't install any other stuff to fix SafetyNet.
  • All the other features of previous version will remain same.
Samsung Base Chanelog
  • Android 12 OneUi 4.0 Changes
Important :
  • This ROM needs to flash with Odin
  • TWRP not working at presently on OneUI 4.0 so end of flashing you will have stock recovery but fully working root.
  • There may or may not be further update on beta as this one is stable to use as daily base. Next update may be after stable release (After TWRP for OneUI available)
  • You can downgrade to R* of latest base from beta Read This how to downgrade to R* version of ROM
  • Installation guide avilable in ROM zip itelf.


TweaksPro recommended version is 3.0.0 or up

ROM Features


- Ad Free QS Panel Toggle
- SafetyNet Pre-fixed
- Reboot to recovery QS Panel Toggle
- Native call recorder (Manual) While you are on call - click 3 dot - Record (Should work without CSC restriction)
- Auto Call Record (See below ROM Tool)
- Removed many stubs & common bloatwares (tried to preserve most functions though)
- Removed carrier bloatwares
- QuickStar without CSC dependency
- More secure OEM patch.
- High Volume warning disabled
- Dual SIM + SD card pre patched
- Pre fixed Titanium freezing while restoring apps
- Probable fix for Titanium Backup schedule
- Internet browser Secret mode
- S Health patch for using with rooted device.
- S21 feature added - Zero Page with Google/Samsung Free options - Zero page now have two options
  • A.Samsung Free or
  • B.Google search
(Long press on blank area of Home - move to zero page (Lt side ) - select required option)
- ROM Tool with following Options

  • Long Press Home customization : Select Device assistance as LP Home from settings, then select if you want to use it to assign to any
  • AdFree mode Enable/Disable
  • Single click install/uninstall custom fonts (on the fly)
  • YouTube Vanced Installer (No xposed requires)
    1. NonRoot - Requires MicroG to login
    2. Root - Truely alternate to Youtube, Can login to youtube without MicroG
  • You have to click on NonRoot/Root depending on your choice, then you needs to click "Install" tab and latest version of Youtube vanced will get installed.
  • StatusBar Icons
    1. Show/Hide stock battery
    2. Show/Hide 3minit battery
    3. show/hide stock clock
    4. show/hide 3minit clock
    5. Show/Hide multiple SB Icons & Clock position (Quick Star) (Needs R update to work)
  • ROM Control - See below
  • GoodLock
  • Mods & Fix
    1. Auto Call Record (No CSC limitations)
    2. Titanium backup FC fix
    3. Google Pay Fix
    4. SafetyNet Fix
    5. Added camera fix (Certain users reported camera failed issue. This is reported on stock too, here is someworkaroung meanwhile samsung fix it)
    6. Option to freeze CID manage (If some CSC have SIM change popup)
    7. Remove red text warning msg from bootsplash.
    8. Install Dolby Atom sound.
  • Update & Fix
- ROM Control (systemUI preferences)

    • Battery Bar with thickness and color option
    • Network meter with Toggle (Lt/Rt/Quick Panel/None) with color option
    • Virtual Key with Toggle (Lt side - Menu, Rt side - Power, Centre - Home)
PS : There may be few more options in ROM control but won't work if those are not mentioned here.


Known Bug/Tips/Fix


  • 3 minit users can use 3minit battery paid version for free. Check this (Thanks to gharrington )
  • SamsungHealth latest version may not work, previous working verssion available in ROM Tool - Update & Bug Fix
  • Tips on TWRP and App Backup/Restore Read Here


Installation : Refer to Installation note available in ROM download area.

Download : DrKetanROM.com



PS : This is a fully customized ROM and for end users only, ROM or any part of ROM not allowed to redistribute,modify or to use as base to prepare new ROM.


STATUS : Online
I have a bootloop. I see only the Samsung screen. What can i do?
 
Last edited:

Trialer03

Senior Member
Feb 7, 2011
50
4
Guys
There are more downloads than my expectations for oneui 4.0 without twrp.
So what's your review? I have decided to keep using it without twrp. Everything else is working fine and stable too.
Whiting for your reviews.
I have a bootloop. I see only the Samsung screen. What can i do?
 
Last edited:

froggish

Senior Member
Feb 19, 2012
118
41
Meknes
Just finished setting up my backup on the new oneui 4.0. Everything seems good and smooth as always Dr. I did a full wipe, i followed your installations guide and i had no bootloop or any other problem.
Thanks Dr for your effort. you did a great job.
 
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Timtown

Senior Member
Feb 27, 2007
610
310
Wake Forest, NC
Guys
There are more downloads than my expectations for oneui 4.0 without twrp.
So what's your review? I have decided to keep using it without twrp. Everything else is working fine and stable too.
Whiting for your reviews.

Guys
There are more downloads than my expectations for oneui 4.0 without twrp.
So what's your review? I have decided to keep using it without twrp. Everything else is working fine and stable too.
Whiting for your reviews.
Howdy Doc,
So, I tried wiping and reinstalling (Stock recovery takes me back...). Same issue with the apps. Tried relocating some files to internal storage...problem solved.

During this discovery, I started checking out more recent applications for backup, file explorer et. al. (I've used Root Explorer for 100 years ;) ).

So far, super smooth and really fast. Will add more as time goes on....
 
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chris_morcos

Senior Member
May 5, 2009
64
4
Hi Dr. I have... KERNEL REV. CHECK FAIL. DEVICE:3, BINARY:1

Followed instructions by Copy optics.img and prism.img to root of Internal storage of device & flashing with TWRP before I did the ODIN AP & BL files ?

Please help or advise on what went wrong?

I've researched the error which indicates I can't downgrade my bootloader... If I followed your instructions how did this occur if I came from Version 12?
 

dr.ketan

Recognized Developer / Recognized Contributor
Hi Dr. I have... KERNEL REV. CHECK FAIL. DEVICE:3, BINARY:1

Followed instructions by Copy optics.img and prism.img to root of Internal storage of device & flashing with TWRP before I did the ODIN AP & BL files ?

Please help or advise on what went wrong?

I've researched the error which indicates I can't downgrade my bootloader... If I followed your instructions how did this occur if I came from Version 12?
Try latest A11 stock firmware (UJ6) and then flash SB1 and then you will need to format data from stock recovery
 
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Trialer03

Senior Member
Feb 7, 2011
50
4
I h
Hi Dr. I have... KERNEL REV. CHECK FAIL. DEVICE:3, BINARY:1

Followed instructions by Copy optics.img and prism.img to root of Internal storage of device & flashing with TWRP before I did the ODIN AP & BL files ?

Please help or advise on what went wrong?

I've researched the error which indicates I can't downgrade my bootloader... If I followed your instructions how did this occur if I came from Version 12?
I have the same issue and load the latest original Samsung Firmware and flash it with odin. Than i go to stock recovery and wipe data and load the dr. ketan BL and AP.
 
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Reactions: chris_morcos

iRhyiku

Senior Member
Jan 23, 2011
1,247
347
Guys
There are more downloads than my expectations for oneui 4.0 without twrp.
So what's your review? I have decided to keep using it without twrp. Everything else is working fine and stable too.
Whiting for your reviews.

Very stable and smooth, don't mind the TWRP issue as I rarely went into anyway as you have to connect to a PC to use and magisk handles most of my flashing of mods anyway. Should mention I clean flashed without wiping media.

Any issues I have are with apps not supporting A12 yet.
 
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Top Liked Posts

  • 5
    ChangeLog S02 (OneUI 4.0 stable based)

    • Based on N986BXXS3EULH Jan 2022 security patch OneUI 4.0 Beta (A12)
    • SafetyNet : Included in ROM Tool - Read below ROM setting up Instruction.
    • Included CSC files for OXM group (Only for N986B) : Read Important Notes below for more details.
    • Magik updated - Read Important Instruction below for more details
    • Details of ROM features available below.
    Samsung Base Chanelog
    • The security of your device has been improved.
    Important Instructions for setting up ROM (NEW)


    - In case clean installing ROM
    • on first boot, open magisk and complete the additional setings if asked for, else exit the magisk app. (Don't setup any option in magisk now)
    • Then open ROM Tool, Apply essential fix and Reboot, don't apply any other changes before reboot
    • Again Open ROM Tool - Mods & Misc Fix - Apply SafetyNet Fix - Now SafetyNet should pass. Here same time you can apply other change from ROM Tool if requires (like statusbar option, other mods etc). You can use this app from playstore or This from Github to check SafetyNet
    • Now you can further setup ROM a per your liking. Also MagikHide is Configure Denylist now and available under Magisk Settings.
    • Since A12 Stable Magisk not working and new Magisk doesn't have buil-in Module repo, You can get standalone module manager from here For more details and queries about new magisk ref this
    - In case dirty install (You can try if you are on DrKetan ROM previous version but we DO NOT RECOMMENDED)
    • Clear ROM Tool data
    • Before installing ROM, uninstall Magisk manager from app drawer
    • After ROM installation, update Magisk from installed stub
    • Then Follow above instruction for clean installation
    • In case you have any issue after dirty install, don't post queries on thread, we don't support dirty install, simply go with clean install.
    PS : Plz don't install any other mods for SafetyNet, All queries related to Magisk/SafetyNet will be ignored if already explained above

    IMPORTANT NOTES :
    • We recommended to flash Stock firmware before flashing this ROM if you are on too old base or on other ROM , If not full, at least flash Home_CSC*.tar.md5 file from stock firmware with CSC tab of Odin. This is specifically for
      • N985 Device (Any group of CSC)
      • N986B device with non OXM group of CSC (To check your CSC group, Dial *#1234#. If CSC part doesn't starts with N986BOXM your are on Non OXM group of CSC
    • For N986B device with OXM group CSC (If your CSC part starts with N986BOXM) files are included (about 98 CSCs) in ROM setup file, You can see complete list of available CSC in aroma installer. You must select to flash CSC option if your csc is part of it. This will update CSC files to same base.
    • New base have updated bootloader so if you are running previous base, you must needs to update Bootloader & Modem else device won't boot. BL and Modem available in download area (separate for N986B and N985F each) with separate instructions packed inside.
    • Clean Install is recommended always.
    • Don't Install any module related to SafetyNet Fix/Busybox/Multidisabler etc, Everything is included in ROM itself.

    TweaksPro recommended version is 3.0.2 or up

    ROM Features


    - Ad Free QS Panel Toggle
    - SafetyNet Pre-fixed
    - Reboot to recovery QS Panel Toggle
    - Native call recorder (Manual) While you are on call - click 3 dot - Record (Should work without CSC restriction)
    - Auto Call Record (See below ROM Tool)
    - Removed many stubs & common bloatwares (tried to preserve most functions though)
    - Removed carrier bloatwares
    - QuickStar without CSC dependency
    - More secure OEM patch.
    - High Volume warning disabled
    - Dual SIM + SD card pre patched
    - Pre fixed Titanium freezing while restoring apps
    - Probable fix for Titanium Backup schedule
    - Internet browser Secret mode
    - S Health patch for using with rooted device.
    - ROM Tool with following Options

    • Long Press Home customization : Select Device assistance as LP Home from settings, then select if you want to use it to assign to any
    • AdFree mode Enable/Disable
    • Single click install/uninstall custom fonts (on the fly)
    • YouTube Vanced Installer (No xposed requires)
      1. NonRoot - Requires MicroG to login
      2. Root - Truely alternate to Youtube, Can login to youtube without MicroG
    • You have to click on NonRoot/Root depending on your choice, then you needs to click "Install" tab and latest version of Youtube vanced will get installed.
    • StatusBar Icons
      1. Show/Hide stock battery
      2. Show/Hide 3minit battery
      3. show/hide stock clock
      4. show/hide 3minit clock
      5. Show/Hide multiple SB Icons & Clock position (Quick Star) (Needs R update to work)
    • ROM Control - See below
    • GoodLock
    • Mods & Fix
      1. Auto Call Record (No CSC limitations)
      2. Titanium backup FC fix
      3. Google Pay Fix
      4. SafetyNet Fix
      5. Added camera fix (Certain users reported camera failed issue. This is reported on stock too, here is someworkaroung meanwhile samsung fix it)
      6. Option to freeze CID manage (If some CSC have SIM change popup)
      7. Remove red text warning msg from bootsplash.
      8. Install Dolby Atom sound.
    • Update & Fix
    - ROM Control (systemUI preferences)

      • Battery Bar with thickness and color option
      • Network meter with Toggle (Lt/Rt/Quick Panel/None) with color option
      • Virtual Key with Toggle (Lt side - Menu, Rt side - Power, Centre - Home) (PS : Not working on A12)
    PS : There may be few more options in ROM control but won't work if those are not mentioned here.


    Known Bug/Tips/Fix


    • 3 minit users can use 3minit battery paid version for free. Check this (Thanks to gharrington )
    • SamsungHealth latest version may not work, previous working verssion available in ROM Tool - Update & Bug Fix
    • Tips on TWRP and App Backup/Restore Read Here


    Installation : Refer to Installation note available in ROM download area.

    Download : DrKetanROM.com



    PS : This is a fully customized ROM and for end users only, ROM or any part of ROM not allowed to redistribute,modify or to use as base to prepare new ROM.


    STATUS : TESTING


    .


    Screenshot_20220117-231556_Settings.jpg
    1
    ROM Tool enables magisk hide instead of zygisk. Both are same. If you want to use zygisk, you needs different version of safetynet fix. I am sure many users might using GPAY without zygisk too (magiskhide). Rom tool setup all require environment if follows instruction, manually changing things mess up everything
  • 12
    Happy new year friends!
    8
    Stable A12 is much smooth and fluid.
    If no major bug found then S01 (Based on Stable A12) will be sent to test users tomorrow. (It's too late here now) also installation method will be completely different on A12. New installation guide will be available inside rom zip itself.
    Goodnight!
    7
    Stable A12 out!
    7
    Some people hardly read anything in Chnagelog, nor they interested to spare 10 min to read included installation guide, They can see only flashable zip in download area, later cry for bla bla..
    I have stopped spoon feed and let them to learn by own experience, else they never. If anyone have any issue understanding Installation guide, better make it clear here before initiating Installation process.
    Reporting real issue are always welcomed.
    6
    Testing S01 (Stable A12) now!

    Screenshot_20211230-014718_Settings.jpg
  • 30
    N986B/N985F Dr.Ketan ROM





    ROM Features

    ROM Features varies with version of ROM. For more details, read changelog post. Link available in post #3 for changelog of all versions.
    Must read changelog for a version you are going to install, it will have latest information about features, changes, known bug list/fix and Installation guide of respective version.

    Credit and Thanks :
    @Chainfire - Respected elite developer for supersu and his unbelievable contribution to XDA/Android community. @wanam - Respected elite developer for his awesome contribution and references to his works.
    @topjohnwu for Magisk
    @xperiacle the amazing developer for reference to his work and tools. @amarullz for aroma installer. @gharrington for 3minit battery and QuickLaunch.
    ROM Control source and all credit and thanks goes to @daxgirl and @Wuby986 for their open source project for RomControl.
    @AbrahamGC for some ideas samsungvn htcmania & 4PDA for tips and some stock apks. @geiti94 for TWRP @Arteush for bluetooth fix (losing BT pair on reboot) on Android Q, aka_vkl for Dolby digital, kdrag0n for SafetyNet fix @Winb33 for custom font pack





    XDA:DevDB Information

    N986B I Dr.Ketan ROM , ROM for the Samsung Galaxy Note 20 Ultra

    Contributors
    dr.ketan, Dr.Ketan
    ROM OS Version: Android 11
    ROM Kernel: Linux 4.x
    ROM Firmware Required: Stock Samsung

    Version Information
    Status:
    Stable

    Created 2020-08-27
    Last Updated 2020-10-29
    26
    Dear friends
    Sorry for not available on xda since nearly 3 wks because of medical urgency. Now all good but still covid situation in my city is horrible (second wave) and becauses of pending work as well too much hospital workload, it may still take one or two weeks more to full come back on xda.
    Thank you everyone for support and patience.
    Regards
    16
    After some workaround found a way to use TWRP on A12, I am in touch with Ian regarding this for final fix and public release.

    Edit : Made backup of SB1 and worked like a charm, yet restore not tested though.

    Screenshot_2021-11-29-11-59-18.png Screenshot_20211130-032646_Root Explorer.jpg
    15
    ChangeLog R03 (N986B/N985F)

    (Update : There is new version R03_New.
    Basic features remain same as R03. Read This for R03_New change log)
    • Based on N986BXXU1DUB6 Feb2021 security patch OneUI 3.1
    • SafetyNet fix will auto apply with ROM Tool essential fix. Don't use any other safetynet fix
    • Magisk updated to latest stable
    • GoodLock & Quick Star updated
    • AdFree host file updated
    • Vanced manager updated
    • More apps debloated (download area have restore files if needed
    • Custom fonts available in debloating folder of download area
    • All the other features of previous version will remain same.
    • Samsung Base ChangeLog

    Calendar
    - Extract the date and address from the event title and recommend automatic registration.
    - Receive notifications from SmartThings devices that also have specified schedule notifications.
    Camera
    - The performance of Camera has been improved
    Display
    - Eye comfort shield function has been added.
    - The color temperature of the screen automatically adjusts for the time of day.
    Buds Auto Switching
    - Support Buds auto switching between Galaxy phone and tablet.
    Reminder
    - Extract the date and address from the reminder memo and recommend to register automatically, and remind important information by situation.
    Share Sheet
    - It is now possible to protect your privacy by deleting the location information of previously taken photos before sharing or posting them on social media.
    Social Platform
    - Synchronize valid links created on devices with the same registered Samsung account.
    - The use of social media services has been simplified. It is possible to share profiles, photos, notes, schedules, and more with friends simply by logging in to your Samsung account.
    Photo Editor
    - Object eraser feature has been added to Labs in Photo Editor.
    - Using Erase Objects allows you to erase an object which you want in the photo.


    TweaksPro recommended version is 2.0.7 or up

    ROM Features


    - Ad Free QS Panel Toggle
    - Reboot to recovery QS Panel Toggle
    - Native call recorder (Manual) While you are on call - click 3 dot - Record (Should work without CSC restriction)
    - Auto Call Record (See below ROM Tool)
    - Removed many stubs & common bloatwares (tried to preserve most functions though)
    - Removed carrier bloatwares
    - QuickStar without CSC dependency
    - More secure OEM patch.
    - High Volume warning disabled
    - Dual SIM + SD card pre patched
    - Pre fixed Titanium freezing while restoring apps
    - Probable fix for Titanium Backup schedule
    - Internet browser Secret mode
    - S Health patch for using with rooted device.
    - ROM Tool with following Options
      • Long Press Home customization : Select Device assistance as LP Home from settings, then select if you want to use it to assign to any
      • AdFree mode Enable/Disable
      • Single click install/uninstall custom fonts (on the fly)
      • YouTube Vanced Installer (No xposed requires)
        1. NonRoot - Requires MicroG to login
        2. Root - Truely alternate to Youtube, Can login to youtube without MicroG
      • You have to click on NonRoot/Root depending on your choice, then you needs to click "Install" tab and latest version of Youtube vanced will get installed.
      • StatusBar Icons
        1. Show/Hide stock battery
        2. Show/Hide 3minit battery
        3. show/hide stock clock
        4. show/hide 3minit clock
        5. Show/Hide multiple SB Icons & Clock position (Quick Star) (Needs R update to work)
      • ROM Control - See below
      • GoodLock
      • Mods & Fix
        1. Auto Call Record (No CSC limitations)
        2. Titanium backup FC fix
        3. Google Pay Fix
        4. SafetyNet Fix
        5. Added camera fix (Certain users reported camera failed issue. This is reported on stock too, here is someworkaroung meanwhile samsung fix it)
        6. Option to freeze CID manage (If some CSC have SIM change popup)
        7. Remove red text warning msg from bootsplash.
      • Update & Fix
    - ROM Control (systemUI preferences)

      • Battery Bar with thickness and color option
      • Network meter with Toggle (Lt/Rt/Quick Panel/None) with color option
      • Virtual Key with Toggle (Lt side - Menu, Rt side - Power, Centre - Home)
    PS : There may be few more options in ROM control but won't work if those are not mentioned here.


    Known Bug/Tips/Fix

    - Wallapaper setting not available because of debloating accidentally file. Kindly flash
    AR_Zone_Emoji_WallPaper.zip from Download/Bloatware folder
    - 3 minit users can use 3minit battery paid version for free. Check this (Thanks to gharrington )

    Installation
    : Refer to Installation note available in ROM download area.

    Download : DrKetanROM.com



    PS : This is a fully customized ROM and for end users only, ROM or any part of ROM not allowed to redistribute,modify or to use as base to prepare new ROM.






    .
    14
    Wishing you friends happy and healthy new year! Stay safe and blessed.