I just chat with ATT representative and informed that I have a random shut down problem. I happened several times recently and I don't remember whether I was on stock or custom roms. Right now, I'm on illuminance 3.0. Also, because I also have a speaker problem, I was hoping to get a replacement.
I bought my cell phone July/2010, so I am sure my phone is within that range. The representative said he sent me a update and I actually saw the popup menu saying that pwr on/off. I pressed okay, but nothing happened since I'm on the custom rom. I knew it is not gonna work but pretended it powered off. The representative asked to check the software version and I said it is the stock rom version. Then, the rep. says it will fix the problem.
Before finishing the chat, I asked that I was hoping to get a replacement. But representative says that since it is out of one year warranty, they are not responsible for factory defects. Then, I asked "No matter what problem it is, after the warranty period I cannot get a replacement?" then he replied that is correct.
I saw some threads saying that people were able to get a replacement. I'm still a little confused that where I have to be in the warranty period or extended warranty or so. Anyway this was my experience and I just wanted to share it.