I watched your tutorial on youtube,how to install MacOS Mojave on a 2010 macbook pro.
Everything went well until I reached the NO ENTRY mark. I stop the computer and restart pressing alt/ option button, it does not worked, the same sign appears to me.
Thon't work the no option + R for save mode.
What can I do? On El captain I used boot camp for windows, and it was the same( not open bootcamp after start computer, only if I gave restart.Now I can not restart.