• Model : SM-G991B

  • CPU : Exynos 2100

  • GSM : 850 / 900 / 1800 / 1900

  • CDMA : 800 / 1900 & TD-SCDMA

  • HSDPA : 850 / 900 / 1700(AWS) / 1900 / 2100

  • CDMA2000 1xEV-DO

  • 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 : 1, 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


  1. Odin

    • 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.

  2. Azenqos 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

Unlock Bootloader

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

  1. Make sure the phone have internet connection.

  2. Open Settings application on the phone and go to About phone --> Software information.

  3. Continuously tap on Build number for 5 times until the popup shows "You are now developer" .

  4. Navigate back to the main page of Settings and tap on Developer options.

  5. Enable OEM unlocking.

  6. Change USB options to Transfer file.

Enter Download mode

  1. Power off the phone and disconnect from PC

  2. Hold volume up and volume down while insert USB cable to the phone

  3. Hold volume up to unlock to phone when the enter the Download mode screen

  4. Use volume up and down to navigate and select YES

  5. The phone will reboot automatically

  6. Finished the setup and enable Developer mode again

  7. 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 firmware

  1. Download Azenqos firmware from the link in required files section above.

  2. Power off the device then boot it to Download mode by Hold volume up and volume down while connect USB to the phone.

  3. Open Odin on PC

  4. Make sure Odin detect the phone (showing COM port)

  5. Click on AP button and select Azenqos Magisk firmware file

  6. Click Flash button

  7. 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)

  8. The phone will boot to special menu, please use volume buttons to navigate then press power button select "Format factory data"

  9. Select reboot when the format is done

Install MAGISK and busybox

  1. Download Magisk apk from here <------------- click to download

  2. Install it on the phone.

  3. Open Magisk app and if it ask to install "additional setup" just select "OK" and reboot the phone once.

  4. Please update magisk to latest version if there are available.

  5. Go to the last menu icon at the bottom on magisk then select search icon

  6. Type "Busybox" in search box and select install icon on "Busybox NDK" module and wait until installation done

  7. Reboot the phone

Install Azenqos application

  1. Go to

  2. Download AzenqosMobile-releaseXXXXXX_vXXX.apk

  3. Install it on the phone

  4. Open Azenqos apps and grant the supersu permission then activate the license

  5. Azenqos is ready to use