After updated to latest version my IQOO 9T 5G phone start heating and suddenly one day green line observed on screen when I complaint about it and visited service store they told me that my display was damaged and they suggest me to change it but not free and it has cost 10,000 although my phone is not physically damage.

This is the worst experience I had so it's a dirty business by iqoo team,shame on them,and they want to become a competitor with other brands.

Please fix my issue for free.