IME the procedure I use has always worked automatically without my having to blacklist anything or manually intervene in any way.
Which CPU etc?
Intel® Core™ i7 6500U Processor,
Intel® Core™ i5 6200U Processor,
Intel® Core™ i3 6100U Processor
X302UV | Notebooks | ASUS Global
Your notebook was released in Feb., 2016 according to the older of the two UEFI / BIOS versions which are available for it so far. Is it running the newest one, BIOS 203?
As well, are you using secure boot?
For future reference, if one is intent upon buying an Intel-based notebook for use with Ubuntu then a purpose-built System76 lappy is one time saving option worth checking out:
Laptops - System76
ZaReason Linux Laptops, Desktops, Servers and more
Top 5 Ubuntu pre-installed Laptop companies | Unixmen
Certified hardware | Ubuntu
Note. I’ve never done business with System76 etc as I’ve no need for a laptop.
I prefer the more hands-on approach of doing a GNU/Linux-friendly desktop build whose components I can research, co-ordinate, trouble-shoot and replace / upgrade on my own while avoiding as much as possible intrusive pitfalls such as proprietary out-of-band ‘remote management’ technologies.
Experience has taught me to avoid bleeding edge technology in favor of getting premium examples of the preceding generation of hardware in order to access and benefit from the most mature PCB, UEFI / BIOS and driver support along with sequential track records of user feedback.
When it comes to computers the latest is only the greatest if it works. And usually by the time it does - as the result of many hair-pulling hours of unpaid time spent plowing through forums - it’s no longer the latest nor the greatest.