same here , a few days back the wifi on my rog phone 5s stopped working after a firmware update , took it to the store and they quoted me a repair bill of Rs 43000 (~$520) , i was pretty shocked as the phone was worth rs50000 at launch (~$600), and this is a pretty common issue plaguing all the rog 5 series phones , asus should offer a free board replacement as this seems to be a widespread issue, i have contacted support and told them to escalate my case , if they do not do anything i'll file a case with consumer complaints in India as i've seen alot of people do
Also i went to a local repair shop which does board level repair , they quoted me rs 2000 for replacing the Wifi chip/ic , if nothing comes of this and since asus doesnt assure you that the issue will not come back after a replacement i may go with the option of just replacing the chip/ic.
Asus rog makes some pretty cool laptops graphics cards power supplies and motherboards which im proud to own but i cant say the same about this phone as it didnt meet my expectations, i would still buy rog components for a pc but never planning to buy another phone from asus
