Additional information on step 1D, there are a lot of people who does not have fungicide, they will use shallots ( red and small Asian onions, not the sweet onions) , they cut the shallots by half squeeze it a bit to get the juice, then rub the shallots around the edge of the caudex, not the bottom, they said shallots can act as both fungicide and root hormone.
Also you may see that I have cut the adenium that is long and bending, please ignore that one, it is my by-project, usually we do root training, then later we will cut the adenium to have multiple branch, I just want to see if I do both at the same time, will the plant survive. By doing this we understand that the chance of it to live is smaller than the chance of it to die. I do not recommend anyone to try this.