I have so far managed to create a bootable USB with macOS Sierra on and I can't get to the install screen. I can boot to the flash drive and see the clover screen but then it won't boot to an install screen.
My Laptop specs are. (Acer Aspire E14 (E5-411-C9KS))
Intel Celeron N2840 (Which apparently has an equivalent to HD Graphics 4000?)
4GB DDR3 L Memory.
And the rest isn't important because it has integrated graphics but it is only classed as "Intel HD Graphics" and nothing else.
I don't own a mac so I had to create the USB using a .raw file I downloaded which must work because it worked on the tutorial and I followed every step.
I have pretty good knowledge of computers but no where near an expert. But if you need any more information, you will need to give me a clue on how to answer your question.
Please don't comment if this is stupid or something, I'm only hear to get an answer and to get to the installation screen to install macOS Sierra.