source file to bin does not work. blinks boot screen.

Sorry but I don't understand your question, if your having problems with the source file check the provided Github link clone the repository from that point and it should work. Then you can study what you did wrong. If it still does not work this just means the system was not in a state ready for compliation/running. In the tutorials we spend time building all the features so its not guaranteed to run without issues on a particular lesson because maybe we did not finish developing something yet. This is why many lessons have part 1, 2, 3 and so on only by part three you should expect the code to work.

So test my version if it works then your code is wrong you need to compare to see what you did wrong. If my version does not work it just means the feature has not yet been completed yet. We test the kernel in the video files at times thats the times you should test your own work not before