Ghost touch problm in asus 5z

[jackfacebook_le]

Model: ZS621KL
RAM: 6G
Firmware/APP Version: 9.0
Frequency of Occurrence: 45%
Rooted: No
APP Name:

I m also facing ghost touches in my asus zenfone 5z...i can't even type properly...its working by itself sometimes....and sometimes even if i don't touch the screen it automatically working by its own....but when i face this issue i just lock the phone for a moment and then start using it....then everything works normal for a little while then againn its starts disturbing....i think it is a software issue and can be solved by new update...please look at this problem.thanks

[gauravupadhyay7]

Hi, I have not installed any new app, moreover I performed a factory reset also still the problem persists, any other solution available pls let me know