I Want a Replacement for My Faulty iPhone 16 Pro Max

On March 15, 2025, I purchased a brand-new iPhone 16 Pro Max. I’ve been an iPhone user for many years, and I bought this device with great excitement, trusting the brand. However, about a week later, I noticed a malfunction. During phone calls, the sensor turns off the screen, but after the call ends, the screen stays black and locked—I can't interact with it at all. I submitted a complaint and, since the device was brand new, it was immediately sent to an authorized service center. I waited nearly three weeks. When the phone was returned, they told me there was no problem and that only a software update had been performed. Trusting this, I accepted the phone, but the same issue happened again during my first use. I’m certain the issue is with the sensor, and even the sales representatives confirmed it. The screen goes dark during calls, and although the system remains active (calls and messages can be heard, Siri responds), the screen stays off, making the phone unusable. Despite all this, they insisted again there was no issue, and I sent the device back to service. It’s now under review again, and I’m honestly shocked. As a long-time iPhone user, this situation has truly upset me. Experiencing such a problem with a global brand is incredibly disappointing. I’ve never preferred Android and have used Apple for years, but this malfunction has caused both emotional and financial distress. At this point, I’ve nearly lost all interest in using the phone. It’s very frustrating to encounter such a defect in a top-tier, brand-new device. I hope my complaints are taken seriously and necessary action is taken. I request that my phone be replaced, as I no longer want to use a device that has been sent to service twice. I’m truly upset that a phone I bought brand-new turned out to be problematic. If this issue isn’t resolved, I will file a complaint with the Consumer Court as a last resort.