thank you so much Bro !!! 👍👍👍 After reading your comment, I have switched my wifi to the unmetered connection and than its support 1080p on YouTube but not with mobile data. But earlier there was no need to change the settings so why now ?
if u are using wifi for youtube than go to connection settings of wifi, than select ur wifi and in advance, select ur connection as unmettered than check youtube. it will work. befor ur post in my a51 that also show only in 480p but after change this its now showing 1080p. ur phone also supported to 1080p, u just need to do this settings.
