My motherboard failed recently on my S22U and was told by ubreakifix that it would be $799 to repair. This shouldn't be happening on a flagship after only 3 years. It seems like many people have the same issue. I had the same issues as many where it was stuck in a boot loop and would only respond if it was in a freezer. Even in a freezer I could only manage a few minutes. We need to get free repairs for compensation for these expensive phones.
