How to flash Android S 12, Android R 11, Android Q OS10, 9.0.0 Pie, 8.1.0/8.0.0 Oreo using Odin
1: Install Samsung usb drivers | download here or here
2: Make sure you have downloaded correct firmware according to your own model. Wrong firmware flashing, wrong bootloader version may brick your device permanently.
3: Manual boot device into 'Download Mode' by (Turn it off, Press and hold Bixby (or HOME) + Power + Volume Down then Volume Up
4: Connect device to PC via a working USB cable.
5: Download new Odin (Odin3_v3.14.4.zip | Odin3_v3.13.2.zip | Odin3_v3.11.1.rar | Odin3_v3.13.1_3B_PatcheD.zip), Extract and Run 'Odin 3.xx.x exe' file as administrator.
6: Load corresponding package to each option (BL, AP, CP, CSC)
Click on BL : Load BL_ file (Bootloader)
Click on AP : Load AP_ file (System &Recovery)
Click on CP : Load CP_ file (Modem / Radio)
Click on CSC : Load CSC_ file or Home_CSC_ file (Country / Region / Operator)
7: Make sure "Re-Partition" is NOT ticked
8: Hit on 'START' button to start flashing process. Please do not touch or unplug device in any condition. Device will reboot automatically when Odin 'PASS'
9: All Done! Follow screen instructions to setup new device.
Warning! Updating your phone will erase all of your personal data (contact, sms, note, images..) stored on your phone. Please back up all data before flashing.