I followed a guide and have it done. It's in spanish but you can translate it with google translate and it's readble, xda doesn't let me put links here so send me a private message so I can send it to you if you want it.
Worked on my VKY-L29, thanks a lot!
Update: Need some help! After any reboot magisk uninstall itself and lose the root, so it's impossible to install any module since I need to restart after installing them. Anyone with this problem? Someone knows what can it be causing this?
I flashed TWRP successfully, but when I reboot TWRP logo shows but immediately my phone restart to fastboot again, tried 5 times, same results. Can anyone help me with this please? :(:(:(