Originally Posted by b1os
Sure about that? A quick Google search suggests that there are various possible fixes, including flashing the firmware, doing a factory reset etc, which makes it very unlikely to be a mechanical defect. Do you still have guarantee?
I can't be 100% certain what the problem is, but a factory reset doesn't work. I can't get far enough into the boot process to do anything software related.
Also, like I said, there's a well-known mechanical issue with the Galaxy S2 that causes this to happen. Some people can get it to boot just by messing with the power button enough, but others have had to replace the button. I've also read about people for whom none of those options work.
I'm out of warranty, but still under contract, which is pretty much at the nexus of cell phone hell.