Vivo Mobile India — Vivo x50 mobile

I am using Vivo x50 mobile phone...due to the recent update of the phone...it is showing green line and this same problem is face by many people...what is the point of buying such flagship phone if the company cannot adhere to resolving the glitch happend from their side...it is against consumer protection act and the violation of right to repair...my phone has not fallen aur pressed and it is pure technical problem associated with mobile update service provider...kindly resolve this issue as soon as possible