At this point, it doesn't matter if it is hardware or software issue. Either way, service center in the case here already determine black crush issue is not valid for warranty claim. If it is hardware issue, nothing can be done anymore. Even if it is really hardware issue, they will never claim to be it, in reality, is much more cost efficient to perform dirty patch and wait till next generation than performing repair/call back in which I believe all units have such issue. When new generation come, they will push more attention seeking feature and have this problem fade away, no biggie since reputation is not large enough to get slammed by tech media.
