Apple iPhone 11 Pro Motherboard Error Caused By Apple Update

My iPhone 11 Pro, which I have been using for 3 years, started shutting down and restarting on its own. After using it for about 4-5 minutes, the screen freezes, and it doesn't get fixed without a restart. Additionally, the device has significantly slowed down, to the point where it can hardly open any applications. These problems occurred suddenly, and the development was as follows: My Apple AirPods Pro's right earbud wasn't working, so I contacted live support through Apple's support page. They informed me that there was a missing software update on my phone and advised me to perform the update, suggesting that if the issue persisted, it would be better to contact Apple again. Since downloading this update to my phone, the mentioned issues have arisen. In the more than 3 years of use, I have never experienced a similar problem before. Therefore, I believe that this error is due to a software bug in the update, which caused damage to the hardware of my phone. When I made an appointment with Apple for repair, they informed me that there was a problem with the motherboard, and the cost of the repair is 29,704 TL (Turkish Lira). They also mentioned that since the warranty has expired, this cost cannot be covered in any way. While it's true that the warranty has expired, if this issue was due to usage or a manufacturing defect that occurred over time, I could have accepted it. However, the reason for my phone's motherboard failure is the update that Apple's support representative directed me to install. In other words, the cause of my phone's malfunction is directly related to Apple's own update. Almost all of the technological products I have been using for years are Apple brand, and this is the first time I have encountered such a situation. I believe that regardless of whether a product's warranty has expired or not, Apple should be responsible for covering any hardware issue caused by their own update, either on my phone or anyone else's device.