SAMSUNG GALAXY S21 ULTRA 5G (EXYNOS)
SAMSUNG GALAXY S21 ULTRA 5G (EXYNOS VARIANT)
Model : SM-G998B
CPU : Exynos 2100
GSM : 850 / 900 / 1800 / 1900
CDMA : 800 / 1900 & TD-SCDMA
HSDPA : 850 / 900 / 1700(AWS) / 1900 / 2100
LTE band : 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66
NR band : 3, 7, 28, 41, 78
There are a couple of things to be prepare before starting installation process, please carefully follow the guide below step by step to prevent unexpected issues
Odin is a flashing tools running on windows to flash Samsung devices firmware. Download from the link below and unzip the file to any folder on your PC to install it.
Odin V3.14.4 <---------- click to download
Azenqos Magisk firmware
This is the custom boot image contained Magisk and Azenqos custom firmware that required to make the phone able to run Azenqos applications. Download the kernel file that match the devices version (build number) from the link in the table below.
!! If your device version is not available on the list, please send "About phone" screenshot that contain model number/name and build number to request the firmware to email@example.com
Mostly new android phone bootloader is locked by manufacture for security reason, follow the instruction below step by step to unlock it before start any installations process
WARING!! : All data and information on the phone will be erase
Enable OEM unlocking
Make sure the phone have internet connection.
Open Settings application on the phone and go to About phone --> Software information.
Continuously tap on Build number for 5 times until the popup shows "You are now developer" .
Navigate back to the main page of Settings and tap on Developer options.
Enable OEM unlocking.
Change USB options to Transfer file.
Enter Download mode
Power off the phone and disconnect from PC
Hold volume up and volume down while insert USB cable to the phone
Hold volume up to unlock to phone when the enter the Download mode screen
Use volume up and down to navigate and select YES
The phone will reboot automatically
Finished the setup and enable Developer mode again
Make sure the OEM unlock option is appear on developer option before continue the next process (if not, connect the phone to internet and wait a couple minute then check again)
Install Azenqos Magisk firmware
Download Azenqos Magisk firmware from the link in required files section above.
Power off the device then boot it to Download mode by Hold volume up and volume down while connect USB to the phone.
Open Odin on PC
Make sure Odin detect the phone (showing COM port)
Click on AP button and select Azenqos Magisk firmware file
Click Flash button
The phone will reboot automatically when the flashing is done. (if failed, likely because OEM unlock option is not appear after unlock bootloader. see No.7 from previous step)
The phone will boot to special menu, please use volume buttons to navigate then press power button select "Format factory data"
Select reboot when the format is done
Install MAGISK and busybox
Download Magisk apk from here <------------- click to download
Install it on the phone.
Open Magisk app and if it ask to install "additional setup" just select "OK" and reboot the phone once.
Please update magisk to latest version if there are available.
Download busybox magisk module from here
Download screenrecord_ex magisk module from here
Download systemizer magisk module from here
Tap on the modules icon at the bottom right.
Tap on Install from storage then select the busybox magisk module module file and wait until installation finished then go back to the modules screen.
Repeat the step 9 to install screenrecord_ex magisk module and systemizer magisk module
Reboot the phone
Install Azenqos application
Go to www.azenqos.com/beta5g
Install it on the phone
Open Azenqos apps and grant the supersu permission then activate the license
Azenqos is ready to use