Hi, I spent hours with relock attempts on Windows with outdated locking XDA Forums because many advise said to re-lock, just needs to do it in reverse order. Finally found this excellent guide how to set up LineageOS and it contains the RE-LOCK steps.It starts with Unlocking Red Magic 9 Pro Bootloader. Only last step needs to be modified: (fastboot flashing unlock -> fastboot flashing lock.)Why not windows? because it needs several USB drivers, several executables...Read more