Turn off the Phone
Follow this word by word:
https://wiki.lineageos.org/devices/crownlte/install
* ensure that the device is on the latest Android 10 firmware * After installing Recovery, do NOT reboot to System or Recovery will be overwritten with Stock Recovery * if you want GApps, install the directly after Linage OS install: https://opengapps.org/?api=10&variant=nano * ..
Problems:
Get the latest Stock ROM from SamMobile (disable Adblocker to download!):
https://www.sammobile.com/samsung/galaxy-note9/firmware/SM-N960F/DTM/download/N960FXXS5DTE2/339392/
Follow instructions to install the ROM via ODIN (windows)
Extract the firmware file you just downloaded. You should get 5 files:
AP (System &Recovery)
BL (Bootloader)
CP (Modem / Radio)
CSC_*** (Country / Region / Operator)
HOME_CSC_*** (Country / Region / Operator)
Add each file to its respective field in Odin v3.14.4. Use CSC_*** if you want to do a clean flash or HOME_CSC_*** if you want to keep your apps and data.
Reboot your phone in Download / Odin mode (make sure your device is off) with the following button combo:
USB cable + VOLUME DOWN + BIXBY
Once in download mode, connect your phone to the PC, preferably using the original USB cable you got
with your phone. Odin should detect your device and a BLUE box will show up with the COM port number.
(Be sure, the SAMSUNG-drivers are installed on your PC!)
Do NOT tick any extra boxes. The only options to be ticked are F.Reset Time and Auto-Reboot.
Click the start button, wait for Odin to say 'PASS' in a GREEN box.
Once the flash is complete, your phone will reboot, and you can disconnect your phone from the PC.