Thanks for the guide and links.
First and foremost, backup your "persist" partition. Better safe than sorry. Instructions are in other guides, Please, do not skip that step, there is no other way back to the vanilla persist partition.
I did it this way on Ubuntu:
First Backup
install https://github.com/bkerler/edl
# Ubuntu
sudo apt install adb fastboot python3-dev python3-pip liblzma-dev git
sudo apt purge modemmanager
git clone https://github.com/bkerler/edl.git
cd edl
git submodule update --init --recursive
sudo cp Drivers/51-edl.rules /etc/udev/rules.