[Samsung Galaxy S21 Ultra] dr.ketan:
ChangeLog S08 (OneUI 4.1)

Based on G998BXXU4CVC4 March 2022 security patch OneUI 4.1

SafetyNet Fix : Pre-Fixed again, No needs to apply two times. Read setting up instructions below

Magisk updated to Stable 24.3 (Zygisk)

ROM Tool on essential fix auto setup zygisk including SafetyNet fix (no needs to change any option manually)

CSC files for OXM group updated : Read Important Notes below for more details.

TWRP may have bugs, 1. Reboot to recovery from TWRP not working so after flashing super.img, manually reboot TWRP and then flash setup zip 2. Backup data folder may give error depending on your data contents, read error log and delete folder causing (delete at your own risk or backup important data alternatively) may these bugs because of it based on old source, Hopefully we'll get update & fix by dev when samsung release source.

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,

After reboot you can check SafetyNet and should be passed. You can use this app from playstore or This from Github to check SafetyNet (Applying ROM Tool Essential fix will offer to install this app)

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 (Applying ROM Tool Essential fix will offer to install this app)

- 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 all magisk modules and 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 Non OXM group of CSC (To check your CSC group, Dial *#1234#. If CSC part doesn't starts with G998BOXM your are on Non OXM group of CSC

For OXM group of CSCs, (If your CSC part starts with G998BOXM) CSC files are included (about 131 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 included in ROM zip with separate instructions.

Clean Install is recommended always.

Don't Install any module related to SafetyNet Fix/Busybox/Multidisabler etc, Everything is included in ROM itself.

TweaksPro version requires 4.0.1 or up

(

Old version may bootloop)

ROM Features (XDA Version)

- Ad Free QS Panel Toggle

- Secure Folder

- 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 recorder without CSC restriction (ROM Tool - Mods & Fix)

- Removed many stubs & common bloatwares (tried to preserve most functions though)

- Removed carrier bloatwares

- More secure OEM patch.

- High Volume warning disabled

- 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)

NonRoot - Requires MicroG to login

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

Show/Hide stock battery

Show/Hide 3minit battery

show/hide stock clock

show/hide 3minit clock

ROM Control - See below

Mods & Fix

Auto Call Record

Titanium backup FC fix

Google Pay Fix

Added camera fix (Certain users reported camera failed issue. This is reported on stock too, here is someworkaroung meanwhile samsung fix it)

SafetyNet Fix

Remove warning screen on bootsplash.

Samsung Health & Private share fix

Camera wakelock fix (stanby bettry drain fix)

Intall Dolby Atom sound mode

Update & Fix

Option to Install A. Yasanac Safety checker app B. Swift Backup C. FOX magisk module manager D. LSposed including Manager while applying essentialFix

- ROM Control (systemUI preferences)

Battery Bar with thickness and color option

Virtual key on statusbar (Lt/Cinter/Rt)

Network meter with Toggle (Lt/Rt/Quick Panel/None) with color option

PS : There may be few more options in ROM control but won't work if those are not mentioned here.

Installation Guide : (File included in ROM zip itself)

Requirement : G998B with TWRP installed

Download and extract zip - It have all required files. Read Installation file and follow to ther letter.

Known Bug/Tips/Fix

3 minit users can use 3minit battery paid version for free. Check this (Thanks to gharrington )

Tips on TWRP and App Backup/Restore Read Here

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