ZenFone max plus root

[f4bio_sc]

hi there...please anyone can help me? can i root my zenfone without unlock bootloader following these steps:
1 - download last stock rom;
2- extract boot.img;
3- patch boot.img with magisk manager;
4- compress again stock rom with patched boot.img;
5- install/update using sd card normally new stock rom "patched".

so, can these work? or brick my zenfone max?
or can i try with only error message and no brick?
thanks guys... and sorry about my english...