As most of users are facing this and still no clear response from them ..I feel it's time to tweet our hearts out. I always used Asus since Asus Zenfone 2 times. Was even planning to buy Laptop ROG Asus. But now mind is changed. After a simple update they crashed the wifi in the phone , arguably one of the most important aspect of mobile. They haven't still come up with update reversal or any fix. All they want is money by replacement of Mother board.