My Zenfone 5z was working fine untill last 4-5 months ago when suddenly it's primary 12MP camera got a problem of unable to focus. Tried several methods including factory reset, safe mode reset, downgrading to Android Pie and many more...but the problem still persists..lastly after emailing them and having said all they asked me to take it to the Nearest Service Centre. Is this a solution guys? Service centre guys have opted me two things- a software reset or change of camera module worth 3k+ Rupees..