I mean  iqoo gives us 4 updates but iqoo doesn't fix the bugs and glitches till now. Whenever I swipe up to open the drawer the notification bar showed upand when I opened YouTube, it switch to 60hz even I go to settings and set tp 120hz it still runs at 60hz. It sometimes run very laggy. There aren't any Ai features, that are very useful. Please iqoo, give iqoo z9 a major to fix this bugs and glitches and add some new ai features