iOS 18 Update Made My iPhone 14 Pro Touchscreen Stop Working and It’s Unresponsive

After updating to iOS 18 on my iPhone 14 Pro, the touchscreen suddenly stopped working. The screen is completely unresponsive to touch, regardless of my efforts. Nothing changed after I let the battery die and restarted the gadget. This is very annoying, especially because the phone is still in its original condition, having never been repaired before being purchased. Furthermore, the guarantee remains in effect. I expected that the upgrade would enhance the phone's performance, not cause an issue like this. I'm contacting you to express my urgent desire for the brand to promptly resolve this matter. I would greatly appreciate it if you could fix this quickly because my phone is currently useless.
Progress
After updating my iPhone 14 Pro device to iOS18, a touch problem occurred on my device. The screen touch does not work at all. It ran out of battery, turned it on and off but it didn't fix it. I bought my device brand new and it has not been repaired in any way. Although the warranty is still valid, I request that the brand redress my grievance.

