Question [Q] upgrading kernel to .35

I am not much of a tech person but recently I have got attacghed to my old phone mi 410 and I am on kernel .32
I have no idea how to update this kernel or what i need to do put Xperiencexperia rom on it. I guess i have to use SULTR but I cannot use it because the micro USB port on my device is not working anymore. Anobody who can guide me or help me or suggest something on what can be done to make Xperiencexperia ROM work or is their nothing that can be done ?