So i have the same issue over the last month 😄 (wifi and hotspot issue ,Sound Issue , tho supprisingly it didnt died. yet~ ) But the question i have to ask about After Replacement the Motherboard will you yall experience Performance drop? or sudden shut down of the phone? This is question has been wandering in my Monkey Brain and also helpful for my decision to replace it (for Asus : Pls test your phone before releasing them your guys are asked backlash by this)